Bug in "git log --graph -p -m" (version 1.7.7.6)

I have found a situation where "git log" produces (apparently) endless output. Presumably this is a bug. Following is a (Linux) script that reliably reproduces the error for me (on Fedora 16):

---------- set -ve

# Print the git version. git --version

# Create respository. rm -rf .git git init

# Initial commit. ( echo 1 ; echo 2 ; echo 3 ) >file git add file git commit -m 'Commit P' git branch B HEAD

# Next commit on master adds line "1a". ( echo 1 ; echo 1a ; echo 2 ; echo 3 ) >file git add file git commit -m 'Commit Q'

git checkout B

# Next commit on B adds line "2a". ( echo 1 ; echo 2 ; echo 2a ; echo 3 ) >file git add file git commit -m 'Commit R'

# Merge the two commits, but add line "3a" to the commit as well. git checkout master git merge --no-commit B # Show what the merge produces. cat file # Add line "3a". ( echo 1 ; echo 1a ; echo 2 ; echo 2a ; echo 3 ; echo 3a ) >file git commit -m 'Commit S'

# These log commands work. git log git log --graph git log --graph -p

# This log command produces infinite output. git log --graph -p -m ----------

Dale