$ git clone -n https://src.fedoraproject.org/rpms/amsynth.git /var/lib/mock/f41-build-856310-167537/root/chroot_tmpdir/scmroot/amsynth
Cloning into '/var/lib/mock/f41-build-856310-167537/root/chroot_tmpdir/scmroot/amsynth'...
$ git fetch origin c3df94e78b4300994dc475bcfd0a585ee19264cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/amsynth
 * [new ref]         c3df94e78b4300994dc475bcfd0a585ee19264cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3df94e Update to 1.13.4