$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-msgpack.git /var/lib/mock/f40-build-2213056-52311/root/chroot_tmpdir/scmroot/php-pecl-msgpack
Cloning into '/var/lib/mock/f40-build-2213056-52311/root/chroot_tmpdir/scmroot/php-pecl-msgpack'...
$ git fetch origin 1269b5b2990614e82e6cff02ef16aee1355c9497:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-msgpack
 * [new ref]         1269b5b2990614e82e6cff02ef16aee1355c9497 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1269b5b rebuild for https://fedoraproject.org/wiki/Changes/php83