# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1500831449 -7200
# Node ID 78b0c605313945685980a44da3e33b330711401d
# Parent  58e4b51ee9029c527a19af1b5e8d677d66b90ac9
precheck: also check for unstability creation

diff -r 58e4b51ee902 -r 78b0c6053139 hgext3rd/evolve/rewriteutil.py
--- a/hgext3rd/evolve/rewriteutil.py	Mon Jul 24 03:04:20 2017 +0200
+++ b/hgext3rd/evolve/rewriteutil.py	Sun Jul 23 19:37:29 2017 +0200
@@ -66,6 +66,11 @@
         msg = _("cannot %s public changesets: %s") % (action, summary)
         hint = _("see 'hg help phases' for details")
         raise error.Abort(msg, hint=hint)
+    newunstable = disallowednewunstable(repo, revs)
+    if newunstable:
+        msg = _("cannot fold chain not ending with a head or with branching")
+        hint = _("new unstable changesets are not allowed")
+        raise error.Abort(msg, hint=hint)
 
 def bookmarksupdater(repo, oldid, tr):
     """Return a callable update(newid) updating the current bookmark
@@ -103,10 +108,6 @@
         raise error.Abort(_("cannot fold non-linear revisions "
                             "(multiple heads given)"))
     head = repo[heads.first()]
-    if disallowednewunstable(repo, revs):
-        msg = _("cannot fold chain not ending with a head or with branching")
-        hint = _("new unstable changesets are not allowed")
-        raise error.Abort(msg, hint=hint)
     return root, head
 
 def deletebookmark(repo, repomarks, bookmarks):