MissingFieldException error in BitBucketServerReviewer

Hello! I build danger-kotlin from sources, and when I try to run (I use bitbucket)
`danger-kotlin *stash_pull_request_number* --dangerfile=Dangerfile.df.kts` I get such error:

kotlinx.serialization.MissingFieldException: Field 'lastReviewedCommit' is required for type with serial name
'systems.danger.kotlin.models.bitbucket.BitBucketServerReviewer', but it was missing
at kotlinx.serialization.internal.PluginExceptionsKt.throwMissingFieldException(PluginExceptions.kt:20)
at systems.danger.kotlin.models.bitbucket.BitBucketServerReviewer.(BitBucketServer.kt:233)
at systems.danger.kotlin.models.bitbucket.BitBucketServerReviewer$$serializer.deserialize(BitBucketServer.kt:233)
at systems.danger.kotlin.models.bitbucket.BitBucketServerReviewer$$serializer.deserialize(BitBucketServer.kt:233)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableElement(AbstractDecoder.kt:70)
at kotlinx.serialization.encoding.CompositeDecoder$DefaultImpls.decodeSerializableElement$default(Decoding.kt:535)
at kotlinx.serialization.internal.ListLikeSerializer.readElement(CollectionSerializers.kt:80)
at kotlinx.serialization.internal.AbstractCollectionSerializer.readElement$default(CollectionSerializers.kt:51)
at kotlinx.serialization.internal.AbstractCollectionSerializer.merge(CollectionSerializers.kt:36)
at kotlinx.serialization.internal.AbstractCollectionSerializer.deserialize(CollectionSerializers.kt:43)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableElement(AbstractDecoder.kt:70)
at systems.danger.kotlin.models.bitbucket.BitBucketServerPR$$serializer.deserialize(BitBucketServer.kt:195)
at systems.danger.kotlin.models.bitbucket.BitBucketServerPR$$serializer.deserialize(BitBucketServer.kt:195)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableElement(AbstractDecoder.kt:70)
at systems.danger.kotlin.models.bitbucket.BitBucketServer$$serializer.deserialize(BitBucketServer.kt:13)
at systems.danger.kotlin.models.bitbucket.BitBucketServer$$serializer.deserialize(BitBucketServer.kt:13)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
at kotlinx.serialization.encoding.AbstractDecoder.decodeNullableSerializableElement(AbstractDecoder.kt:79)
at systems.danger.kotlin.models.danger.DangerDSL$$serializer.deserialize(DangerDSL.kt:14)
at systems.danger.kotlin.models.danger.DangerDSL$$serializer.deserialize(DangerDSL.kt:14)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableElement(AbstractDecoder.kt:70)
at systems.danger.kotlin.models.danger.DSL$$serializer.deserialize(DangerDSL.kt:9)
at systems.danger.kotlin.models.danger.DSL$$serializer.deserialize(DangerDSL.kt:9)
at kotlinx.serialization.json.internal.PolymorphicKt.decodeSerializableValuePolymorphic(Polymorphic.kt:63)
at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeSerializableValue(StreamingJsonDecoder.kt:32)
at kotlinx.serialization.json.Json.decodeFromString(Json.kt:95)
at systems.danger.kotlin.MainDangerRunner.(MainDangerRunner.kt:131)
at systems.danger.kotlin.MainScriptKt.Danger(MainScript.kt:49)
at Dangerfile_df.(Dangerfile.df.kts:6)


I saw same issue with gitlab https://github.com/danger/kotlin/issues/145, I guess it's related to default argument. Can it be fixed?

Start with BitBucketServer.kt, especially BitBucketServerReviewer and the lastReviewedCommit field, and compare this failure with the related GitLab issue #145. Reproduce the Bitbucket command shown in the report; done means a Bitbucket pull request can be decoded and the MissingFieldException no longer occurs when lastReviewedCommit is absent.

Written by the indexing model from the issue text.