People are already starting to use a multi-head model.
# just hard-codes it.
#
merge_repo=$1
+merge_name=${2:-HEAD}
rm -f .git/MERGE_HEAD .git/ORIG_HEAD
cp .git/HEAD .git/ORIG_HEAD
echo "Getting object database"
rsync -avz --ignore-existing $merge_repo/objects/. ${SHA1_FILE_DIRECTORY:-.git/objects}/.
-echo "Getting remote head"
-rsync -L $merge_repo/HEAD .git/MERGE_HEAD || exit 1
+echo "Getting remote $merge_name"
+rsync -L $merge_repo/$merge_name .git/MERGE_HEAD || exit 1
head=$(cat .git/HEAD)
merge_head=$(cat .git/MERGE_HEAD)