The plugin cannot detect changes in the repository (difference between 1.13.3 -> 1.13.4)

I have a simple multi project build. I have a "root-project" that includes a "secondary-project". I would like to use the version of the "secondary-project". I used the repository.directory option:

scmVersion {
    repository {
        directory = new File(pathToSecondaryProject)
    }
}

With v1.13.3, it can detect that there are new commits in secondary-project and properly increments the version, but this doesn't work in newer versions, starting with 1.13.4: it gives me the version from the latest tag, without increasing. Setting ignoreUncommittedChanges = false, detects properly the uncommitted changes though. I looked at the commits but can't figure out what could cause the difference. Thank you!