topic: make revsets like 'foo#stack[0]' work
'stack' relation subscript function is another way to refer to s0, s1, etc. But
instead of aborting in many cases it will simply return an empty set.
#!/bin/sh
. $TESTDIR/testlib/pythonpath.sh
# This file holds logic that is used in many tests.
# It can be called in a test like this:
# $ . "$TESTDIR/testlib/topic_setup.sh"
# Enable obsolete markers and enable extensions
cat >> $HGRCPATH << EOF
[experimental]
evolution=createmarkers,exchange
[extensions]
rebase=
topic=
EOF