fix collection prefix extraction

4 jobs for use-locator in 5 minutes and 13 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Test
passed test-chart #114321
mbr

00:00:13

passed test-sbt #114322

00:02:00

 
  Build
passed assembly-sbt #114323

00:01:28

 
  Publish
passed build-feature-branch-image #114324

00:01:43