$ git clone -n https://src.fedoraproject.org/rpms/libgravatar.git /var/lib/mock/f41-build-858782-168476/root/chroot_tmpdir/scmroot/libgravatar
Cloning into '/var/lib/mock/f41-build-858782-168476/root/chroot_tmpdir/scmroot/libgravatar'...
$ git fetch origin dd66a22962db904858e93e501b7c59da7c80c867:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgravatar
 * [new ref]         dd66a22962db904858e93e501b7c59da7c80c867 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd66a22 24.08.2