$ git clone -n https://src.fedoraproject.org/rpms/golang-x-sys.git /var/lib/mock/f40-build-2289828-55911/root/chroot_tmpdir/scmroot/golang-x-sys
Cloning into '/var/lib/mock/f40-build-2289828-55911/root/chroot_tmpdir/scmroot/golang-x-sys'...
$ git fetch origin 9e394d076d4a5167621c9fcec9ec68ea6da06451:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-sys
 * [new ref]         9e394d076d4a5167621c9fcec9ec68ea6da06451 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e394d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild