Use mask in gather proxy behaviour

3 jobs for !1018 with ahennequ_proxy in 22 seconds (queued for 2 seconds)
detached
Status Name Job ID Coverage
  Test
passed check-copyright #17910106

00:00:13

passed check-formatting #17910107

00:00:22

 
  .Post
manual update references (for shifters only) #17910108
allowed to fail manual