$ git clone -n https://src.fedoraproject.org/rpms/golang-github-skip2-qrcode.git /var/lib/mock/f45-build-20227-569/root/chroot_tmpdir/scmroot/golang-github-skip2-qrcode
Cloning into '/var/lib/mock/f45-build-20227-569/root/chroot_tmpdir/scmroot/golang-github-skip2-qrcode'...
$ git fetch origin f618ca991fb923c68da6d4e063281e589ced2e3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-skip2-qrcode
 * [new ref]         f618ca991fb923c68da6d4e063281e589ced2e3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f618ca9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild