After upgrading git-parameter plugin from 439.vb_0e46ca_14534 to 444.vca_b_84d3703c2 we started having errors in some of our jobs:

ERROR: Invalid parameter value: (StringParameterValue) BRANCH='new-branch'

When Bitbucket PR is created it automatically runs a jobs from new-branch and passes this branch to a different job B. Job B does have a parameter (DSL snippet):

gitParameter {
  type('PT_BRANCH')
  name('BRANCH')
  useRepository('$repositoryUrl')
  description('Choose branch from $repositoryName repository')
  defaultValue('$branchName')
  selectedValue('DEFAULT')
  sortMode('ASCENDING_SMART')
  branchFilter('origin/(.*)')
  tagFilter('*')
  quickFilterEnabled(true)
  branch('')
}

 
When it tries to run, it throws error ERROR: Invalid parameter value: (StringParameterValue) BRANCH='new-branch' even though this branch exists (because it's the same repository).
 
If we refresh the branch list on this job beforehand - the pipeline works.
After reverting the version - the pipeline works as well.