$ git clone -n https://src.fedoraproject.org/rpms/golang-github-gorilla-css.git /var/lib/mock/f45-build-12020-437/root/chroot_tmpdir/scmroot/golang-github-gorilla-css
Cloning into '/var/lib/mock/f45-build-12020-437/root/chroot_tmpdir/scmroot/golang-github-gorilla-css'...
$ git fetch origin 7c55e9fbf4f083f82be4a45cde62353be69a186f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-gorilla-css
 * [new ref]         7c55e9fbf4f083f82be4a45cde62353be69a186f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c55e9f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild