diff --git a/mercurial/templateutil.py b/mercurial/templateutil.py --- a/mercurial/templateutil.py +++ b/mercurial/templateutil.py @@ -350,7 +350,8 @@ class hybriditem(mappable, wrapped): return gen def tobool(self, context, mapping): - return bool(self.tovalue(context, mapping)) + w = makewrapped(context, mapping, self._value) + return w.tobool(context, mapping) def tovalue(self, context, mapping): return _unthunk(context, mapping, self._value) diff --git a/tests/test-template-functions.t b/tests/test-template-functions.t --- a/tests/test-template-functions.t +++ b/tests/test-template-functions.t @@ -932,6 +932,8 @@ Test boolean expression/literal passed t rev 0 is True $ hg log -r 0 -T '{if(0, "literal 0 is True as well")}\n' literal 0 is True as well + $ hg log -r 0 -T '{if(min(revset(r"0")), "0 of hybriditem is also True")}\n' + 0 of hybriditem is also True $ hg log -r 0 -T '{if("", "", "empty string is False")}\n' empty string is False $ hg log -r 0 -T '{if(revset(r"0 - 0"), "", "empty list is False")}\n'