2 commits

Author	SHA1	Message	Date
Martin von Zweigbergk	905a5c97d6	transaction: make sure set of heads has only heads ... `Transaction::add_head()` and others would let the caller add non-heads to the set (i.e. ancestors of others heads) and the the non-heads were filterd out when the transaction was committed. That's a little surprising, so let's try to keep the set valid even within a transaction. That will surely make commands that add many commits noticeably slower in large repos. Hopefully we can improve that later.	2020-12-29 20:44:17 -08:00
Martin von Zweigbergk	6b1427cb46	import commit 0f15be02bf4012c116636913562691a0aaa7aed2 from my hg repo	2020-12-12 00:23:38 -08:00