`VersionConfig#releaseBranchPattern` doesn't update release branch pattern when used together with `incrementMinorIfNotOnRelease` incrementer

[mateuszkwiecinski]

Originally reported in: https://github.com/allegro/axion-release-plugin/issues/391#issuecomment-811393047

Given following config

scmVersion {
   
    versionIncrementer = PredefinedVersionIncrementer.versionIncrementerFor('incrementMinorIfNotOnRelease')
    releaseBranchPattern = Pattern.compile('^random(/.*)?$')
}

and according to the documentation

If incrementMinorIfNotOnRelease rule is activated then the property releaseBranchPattern is used to match the release branch. By default it's set to 'v/.+'.

the plugin should increment patch version when on random/x.y.z branch, minor in all other cases.

It seems like is was broken since at least 1.11.0.

Sample repository

https://github.com/mateuszkwiecinski/axion_playground

Expected result

when on release/7.8.9 the plugin returns 7.9.0-SNAPSHOT version when on master the plugin reports 7.9.0-SNAPSHOT when on random/7.8.9 the plugin prints 7.8.10-SNAPSHOT when on v/7.8.9 the plugin prints 7.9.0-SNAPSHOT

Actual result

(tested on 1.13.1) when on release/7.8.9 the plugin returns 7.9.0-SNAPSHOT version when on master the plugin reports 7.9.0-SNAPSHOT when on random/7.8.9 the plugin prints 7.9.0-SNAPSHOT ❌ when on v/7.8.9 the plugin prints 7.8.10-SNAPSHOT❌

Known workaround

use versionIncrementer overload

scmVersion {
    versionIncrementer 'incrementMinorIfNotOnRelease', [releaseBranchPattern: 'random/.*']
}