cubicweb-vcreview #5645901 handle case where HGRepo.configs is not None [validation pending]

as it will be the case in the next version of vcsfile

prioritynormal
typeenhancement
done in2.2.0
load left0.000
closed by#8b7daa22db6e [hooks] handle case where HGRepo.config is not None, closes #5645901
patchhandle case where HGRepo.config is not None, closes #5645901 [applied]