Re: git log -S problem

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Johannes Sixt <johannes.sixt@xxxxxxxxxx> writes:

> There is something odd with -S of git log. Try this in your git.git:
>
> $ git log --pretty=oneline -Sbuiltin-merge-base -- Makefile 
> 71dfbf224ff980f4085f75868dc409118418731e Make merge-base a built-in.
>
> $ git log --pretty=oneline -Smerge-base -- Makefile
> e468305a954d95a26bfcdec3bc6e4bd477d95676 [PATCH] Remove the explicit ...
> a3df180138b85a603656582bde6df757095618cf Rename git core commands ...
> cef661fc799a3a13ffdea4a3f69f1acd295de53d Add support for alternate ...
> e590d694ead8d50c2afc7086161d4ddc5d907655 Add more header dependencies.
> 6683463ed6b2da9eed309c305806f9393d1ae728 Do a very simple "merge-base"...
>
> $ git version
> git version 1.5.2
>
> I had expected that the set of commits found by the second search string are a 
> proper superset of those found by the first one. What's wrong here? Why does 
> a search for 'merge-base' not find occurences of 'builtin-merge-base'?

71dfbf224 removes one line that has "git-merge-base$X" and adds
one line that has "builtin-merge-base.o".  If you count the
number of occurences of substring "builtin-merge-base" in the
preimage and the postimage, you see one addition.  If you count
the same for substring "merge-base", the net difference is 0.

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