$ git clone -n https://src.fedoraproject.org/rpms/golang-modernc-ir.git /var/lib/mock/f40-build-2572956-62241/root/chroot_tmpdir/scmroot/golang-modernc-ir
Cloning into '/var/lib/mock/f40-build-2572956-62241/root/chroot_tmpdir/scmroot/golang-modernc-ir'...
$ git fetch origin 2fdb4b23897a08c604afdb3e2e4ea350faf943f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-modernc-ir
 * [new ref]         2fdb4b23897a08c604afdb3e2e4ea350faf943f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fdb4b2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild