--- a/mercurial/help/internals/revlogs.txt Wed Mar 01 18:37:34 2017 -0800
+++ b/mercurial/help/internals/revlogs.txt Tue Feb 28 15:19:08 2017 +0100
@@ -108,9 +108,9 @@
16-19 (4 bytes)
Base or previous revision this revision's delta was produced against.
- -1 means this revision holds full text (as opposed to a delta).
- For generaldelta repos, this is the previous revision in the delta
- chain. For non-generaldelta repos, this is the base or first
+ This revision holds full text (as opposed to a delta) if it points to
+ itself. For generaldelta repos, this is the previous revision in the
+ delta chain. For non-generaldelta repos, this is the base or first
revision in the delta chain.
20-23 (4 bytes)