bookmarks: Avoid unconditional forwarding of bookmarks for the null revision
This patch fixes the following minor problem:
% hg bookmark -r null test
% hg bookmarks
test -1:000000000000
[...]
% hg commit
% hg bookmarks
* test 17:861ce7a241f9
That is: Bookmarks referring to the null revision are always forwarded
to the current revision.
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
% "Mainstream" import p1.patch
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
applying p1.patch
% Rebase
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
nothing changed
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
rebase completed
@ 3 P0 tags: p0.patch qtip tip qbase
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o 2 P1 tags: qparent
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o 1 R1 tags:
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o 0 C1 tags: