$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_env.git /var/lib/mock/f42-build-3251805-41222/root/chroot_tmpdir/scmroot/rust-uu_env
Cloning into '/var/lib/mock/f42-build-3251805-41222/root/chroot_tmpdir/scmroot/rust-uu_env'...
$ git fetch origin 9509f17effaf5912997d9a0eb8cf3bc55f163297:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_env
 * [new ref]         9509f17effaf5912997d9a0eb8cf3bc55f163297 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9509f17 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild