obshistory: use a more appropriate type for obslog entries
cand is actually a regular changeset and not 'M' (graphmod.MISSINGPARENT). And
'M' is only used for graph edges, but cand is drawn as a graph node.
Visually there's no effect, but the code makes more sense this way.
--- a/hgext3rd/evolve/obshistory.py Wed Apr 25 14:16:35 2018 +0100
+++ b/hgext3rd/evolve/obshistory.py Fri Apr 27 16:14:10 2018 +0800
@@ -285,7 +285,7 @@
changectx = missingchangectx(repo, cand)
childrens = [(graphmod.PARENT, x) for x in nodeprec.get(cand, ())]
- yield (cand, 'M', changectx, childrens)
+ yield (cand, graphmod.CHANGESET, changectx, childrens)
def _obshistorywalker_links(repo, revs, walksuccessors=False):
""" Iterate the obs history tree starting from revs, traversing