$ git clone -n https://src.fedoraproject.org/rpms/quaternion.git /var/lib/mock/f40-build-790035-136232/root/chroot_tmpdir/scmroot/quaternion
Cloning into '/var/lib/mock/f40-build-790035-136232/root/chroot_tmpdir/scmroot/quaternion'...
$ git fetch origin 569d0fe165f44f2e454749244cffd16de11cc279:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/quaternion
 * [new ref]         569d0fe165f44f2e454749244cffd16de11cc279 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 569d0fe Rebuild (qt6)