$ git clone -n https://src.fedoraproject.org/rpms/rust-trycmd.git /var/lib/mock/f40-build-2707653-71356/root/chroot_tmpdir/scmroot/rust-trycmd
Cloning into '/var/lib/mock/f40-build-2707653-71356/root/chroot_tmpdir/scmroot/rust-trycmd'...
$ git fetch origin 49529e533eee0ee87f1181f9bab42ac6b8bb941c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-trycmd
 * [new ref]         49529e533eee0ee87f1181f9bab42ac6b8bb941c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49529e5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild