$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-scanner.git /var/lib/mock/f45-build-12736-443/root/chroot_tmpdir/scmroot/golang-modernc-scanner
Cloning into '/var/lib/mock/f45-build-12736-443/root/chroot_tmpdir/scmroot/golang-modernc-scanner'...
$ git fetch origin 4b7e827405d310f939bc173a13737e9bb632c9e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-scanner
 * [new ref]         4b7e827405d310f939bc173a13737e9bb632c9e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b7e827 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild