cubicweb-vcsfile #3845451 bridge.import_content crashes with mercurial 3.0 [validation pending]

Relevant traceback:

    self.refresh()
  File "/home/dlaxalde/src/simulagora/cubes/mercurial_server/testutils.py", line 84, in refresh
    bridge.import_content(session, raise_on_error=True)
  File "/home/dlaxalde/src/simulagora/cubes/vcsfile/bridge.py", line 93, in import_content
    raise_on_error=raise_on_error)
  File "/home/dlaxalde/src/simulagora/cubes/vcsfile/bridge.py", line 100, in import_vcsrepo_content
    repohdlr.import_content(vcsrepo, commitevery)
  File "/home/dlaxalde/src/simulagora/cubes/vcsfile/repohg.py", line 271, in import_content
    del missing[:commitevery] # pop iterated value
TypeError: 'orderedlazyset' object does not support item deletion

                              no stdout
                              no stderr
priorityimportant
typebug
done in1.16.0
load0.100
load left0.000
closed by#cabeea7872cf Fix crash in bridge.import_content with Mercurial 3.0
patchFix crash in bridge.import_content with Mercurial 3.0 [applied]