$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-gc-2.git /var/lib/mock/f40-build-2386546-60496/root/chroot_tmpdir/scmroot/golang-modernc-gc-2
Cloning into '/var/lib/mock/f40-build-2386546-60496/root/chroot_tmpdir/scmroot/golang-modernc-gc-2'...
$ git fetch origin 2b8645f13ad67f5dec687a6968f585c1b0227bbc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-gc-2
 * [new ref]         2b8645f13ad67f5dec687a6968f585c1b0227bbc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b8645f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild