$ git clone -n https://src.fedoraproject.org/rpms/golang-github-ianbruene-difflib.git /var/lib/mock/f45-build-12067-437/root/chroot_tmpdir/scmroot/golang-github-ianbruene-difflib
Cloning into '/var/lib/mock/f45-build-12067-437/root/chroot_tmpdir/scmroot/golang-github-ianbruene-difflib'...
$ git fetch origin 44c751b0cf6a97c0e78c8285a0725a1a3f2c4ec6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-ianbruene-difflib
 * [new ref]         44c751b0cf6a97c0e78c8285a0725a1a3f2c4ec6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44c751b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild