evolvecmd: don't set `branchmerge=True` while resolving phase divergence We are not going to create a merge commit, neither we are using two parents in any way. I am unable to see any reason why `branchmerge` should be passed as `True` here. Passing branchmerge as True leads to side effect of having merge related commit information stored in mergestate which leads us to having an active mergestate.