Dynamic associations are not loaded correctly when they have instance level labels

We have the following classes:
```
class Player extends AbstractGraphDomain {

String name

static mapping = {
dynamicAssociations true
labels "__Player__", { GraphPersistentEntity pe, Player instance ->
"Player__${instance.name}"
}
}

}

class Club extends AbstractGraphDomain {

String name

static mapping = {
dynamicAssociations true
labels "__Club__", { GraphPersistentEntity pe, Club instance ->
"Club__${instance.name}"
}
}

}
```

We set a dynamic property called "club" to a player object. Then when we try to access that property we are getting the following exception:

```
org.grails.datastore.mapping.engine.NonPersistentTypeException: [__Club__, Club__club1]
at org.grails.datastore.gorm.neo4j.engine.DynamicAssociationSupport.loadDynamicAssociations(DynamicAssociationSupport.java:91)
at grails.neo4j.Neo4jEntity$Trait$Helper$_getAt_closure1.doCall(Neo4jEntity.groovy:83)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1426)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)
at groovy.lang.Closure.call(Closure.java:414)
at groovy.lang.Closure.call(Closure.java:430)
at org.grails.datastore.gorm.GormStaticApi$_withSession_closure21.doCall(GormStaticApi.groovy:811)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1426)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)
at groovy.lang.Closure.call(Closure.java:414)
at org.codehaus.groovy.runtime.ConvertedClosure.invokeCustom(ConvertedClosure.java:54)
at org.codehaus.groovy.runtime.ConversionHandler.invoke(ConversionHandler.java:124)
at com.sun.proxy.$Proxy102.doInSession(Unknown Source)
at org.grails.datastore.mapping.core.DatastoreUtils.execute(DatastoreUtils.java:319)
at org.grails.datastore.gorm.AbstractDatastoreApi.execute(AbstractDatastoreApi.groovy:40)
at org.grails.datastore.gorm.GormStaticApi.withSession(GormStaticApi.groovy:810)
at grails.neo4j.Neo4jEntity$Trait$Helper.getAt(Neo4jEntity.groovy:82)
at grails.neo4j.Neo4jEntity$Trait$Helper$getAt$0.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
at core.Player.getAt(Player.groovy)
at grails.neo4j.Neo4jEntity$Trait$Helper.propertyMissing(Neo4jEntity.groovy:54)
at grails.neo4j.Neo4jEntity$Trait$Helper$propertyMissing.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
at core.Player.propertyMissing(Player.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1426)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaClassImpl.invokeMissingProperty(MetaClassImpl.java:883)
at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:1864)
at groovy.lang.ExpandoMetaClass.getProperty(ExpandoMetaClass.java:1155)
at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:3763)
at groovy.lang.ExpandoMetaClass.getProperty(ExpandoMetaClass.java:1167)
at core.AbstractGraphDomain.getProperty(AbstractGraphDomain.groovy)
at core.Player.getProperty(Player.groovy)
at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:50)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:307)
at core.InitializeService.$tt__initialize(InitializeService.groovy:20)
at core.InitializeService$_initialize_closure1.doCall(InitializeService.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1426)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)
at groovy.lang.Closure.call(Closure.java:414)
at core.InitializeService$_initialize_closure1.call(InitializeService.groovy)
at groovy.lang.Closure.call(Closure.java:430)
at core.InitializeService$_initialize_closure1.call(InitializeService.groovy)
at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93)
at core.InitializeService.initialize(InitializeService.groovy)
at core.InitializeService$initialize.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
at sampleapp2.BootStrap.initialize(BootStrap.groovy:14)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
```

You can reproduce that by running the project in https://github.com/mburak/sampleapp

Reproduce the failure using the sample project at github.com/mburak/sampleapp, then inspect DynamicAssociationSupport.java at the failing loadDynamicAssociations call and Neo4jEntity.groovy around getAt. Compare the dynamic association lookup with the instance-level labels shown in the issue. Done means accessing the dynamic club association no longer raises NonPersistentTypeException.

Written by the indexing model from the issue text.