I think you've found a "bug" or unexpected feature, but it's not in git,
but in your pager.
Try:
PAGER=cat git log --pretty=format:'%h%Cred%+d test'
Interesting, cat works correctly.
But this still fails for me:
PAGER=cat git log --pretty=format:'%h%Cred%+d test' --graph
The pipe symbol printed (because of --graph) for the second line is
colored and resets the color of the refnames and 'test'.
Now this looks like a bug in git?
I'm assuming you're using "less" and are about to read about its
behavior of resetting colors that are still in effect when it hits a
newline.
There is a section (-R) that mentions less assumes every line starts
normal / uncolored. Shouldn't git follow this assumption when printing
colorized to less?
