$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mattn-runewidth.git /var/lib/mock/f40-build-2447043-61337/root/chroot_tmpdir/scmroot/golang-github-mattn-runewidth
Cloning into '/var/lib/mock/f40-build-2447043-61337/root/chroot_tmpdir/scmroot/golang-github-mattn-runewidth'...
$ git fetch origin 0312650312ad8f7c4cfa52f7e34c473a6f5c653b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mattn-runewidth
 * [new ref]         0312650312ad8f7c4cfa52f7e34c473a6f5c653b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0312650 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild