$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mattn-shellwords.git /var/lib/mock/f45-build-12230-440/root/chroot_tmpdir/scmroot/golang-github-mattn-shellwords
Cloning into '/var/lib/mock/f45-build-12230-440/root/chroot_tmpdir/scmroot/golang-github-mattn-shellwords'...
$ git fetch origin 43e1058cc1b83d0a09204dea9f1a60b0de6198e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mattn-shellwords
 * [new ref]         43e1058cc1b83d0a09204dea9f1a60b0de6198e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43e1058 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild