$ git clone -n https://src.fedoraproject.org/rpms/trayscale.git /var/lib/mock/f41-build-833701-157997/root/chroot_tmpdir/scmroot/trayscale
Cloning into '/var/lib/mock/f41-build-833701-157997/root/chroot_tmpdir/scmroot/trayscale'...
$ git fetch origin 493798f7976e17c3000a93effff9449a6408821d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trayscale
 * [new ref]         493798f7976e17c3000a93effff9449a6408821d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 493798f update to 0.13.0