amend: abort if amending s0 with a different topic
This patch fixes issue of silently changing topic when amending on s0 (base of a topic stack) by aborting in that case. So now if you amend s0 with a topic which is different from wdir parent it won't let you amend until you update to the topic of wdir parent. Changes in test file reflect the added behavior.
topic/default/fix-s0-amend-issue in 4 minutes and 47 seconds (queued for 1 second)8 jobs for