dirstate._dirs: fix refcounting broken by 7dfac37cfabf
reported by Patrick Waugh
@ 5: F
|
| o 4: E
|/|
o | 3: D
| |
| o 2: C
|/
| o 1: B
|/
o 0: A
% Rebasing
% B onto F - simple rebase
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 5 changesets with 4 changes to 4 files (+1 heads)
rebase completed
@ 5: B
|
o 4: F
|
| o 3: E
|/|
o | 2: D
| |
| o 1: C
|/
o 0: A
% B onto D - intermediate point
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 5 changesets with 4 changes to 4 files (+2 heads)
rebase completed
@ 5: B
|
| o 4: F
|/
| o 3: E
|/|
o | 2: D
| |
| o 1: C
|/
o 0: A
% C onto F - skip of E
nothing changed
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 3 files (+1 heads)
rebase completed
@ 4: C
|
o 3: F
|
o 2: D
|
| o 1: B
|/
o 0: A
% D onto C - rebase of a branching point (skip E)
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
@ 4: F
|
o 3: D
|
o 2: C
|
| o 1: B
|/
o 0: A
% E onto F - merged revision having a parent in ancestors of target
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 2 changesets with 1 changes to 1 files (-1 heads)
rebase completed
@ 5: E
|\
| o 4: F
| |
| o 3: D
| |
o | 2: C
|/
| o 1: B
|/
o 0: A
% D onto B - E maintains C as parent
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 3 changesets with 2 changes to 2 files
rebase completed
@ 5: F
|
| o 4: E
|/|
o | 3: D
| |
| o 2: C
| |
o | 1: B
|/
o 0: A
% These will fail
% E onto D - rebase onto an ancestor
abort: cannot rebase a descendant
% D onto E - rebase onto a descendant
abort: cannot rebase an ancestor
% E onto B - merge revision with both parents not in ancestors of target
abort: cannot use revision 4 as base, result would have 3 parents