currentVersion not working [1.10.3 regression]

When upgrading past 1.10.2 'currentVersion' fails to determine the correct version from the tags, as shown below. Issue exists for 1.11.0 and 1.12.0 as well, introduced in 1.10.3.

1.10.2:
```
$ git tag
release/0.1.1-alpha
release/1.7.5
release/1.7.5-alpha
$ ./gradlew cV

> Configure project :

> Task :currentVersion
Property 'versionConfig' is not annotated with an input or output annotation. This behaviour has been deprecated and is scheduled to be removed in Gradle 7.0. See https://docs.gradle.org/6.5/userguide/more_about_tasks.html#sec:up_to_date_checks for more details.

Project version: 1.7.5
```

1.10.3: (changing plugin on same project - no other changes)
```
$ git tag
release/0.1.1-alpha
release/1.7.5
release/1.7.5-alpha
$ ./gradlew cV

> Configure project :

> Task :currentVersion
Property 'versionConfig' is not annotated with an input or output annotation. This behaviour has been deprecated and is scheduled to be removed in Gradle 7.0. See https://docs.gradle.org/6.5/userguide/more_about_tasks.html#sec:up_to_date_checks for more details.

Project version: 0.1.0-SNAPSHOT
```

Configuration:
```
project.version = scmVersion.version

project.scmVersion {
localOnly = true
tag {
prefix = 'release'
versionSeparator = '/'
}
}
```