$ git clone -n https://src.fedoraproject.org/rpms/xcb-util.git /var/lib/mock/f40-build-788965-135466/root/chroot_tmpdir/scmroot/xcb-util
Cloning into '/var/lib/mock/f40-build-788965-135466/root/chroot_tmpdir/scmroot/xcb-util'...
$ git fetch origin c14af7cb17ab3b8a6cfbf5cf527d293b670386bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xcb-util
 * [new ref]         c14af7cb17ab3b8a6cfbf5cf527d293b670386bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c14af7c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild