$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mdlayher-raw.git /var/lib/mock/f45-build-12240-440/root/chroot_tmpdir/scmroot/golang-github-mdlayher-raw
Cloning into '/var/lib/mock/f45-build-12240-440/root/chroot_tmpdir/scmroot/golang-github-mdlayher-raw'...
$ git fetch origin a26a4a727a962451aecb825c8592f4c2131b6c68:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mdlayher-raw
 * [new ref]         a26a4a727a962451aecb825c8592f4c2131b6c68 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a26a4a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild