$ git clone -n https://src.fedoraproject.org/rpms/rust-timebomb.git /var/lib/mock/f38-build-side-43-rust-devel-1413363-31444/root/chroot_tmpdir/scmroot/rust-timebomb
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413363-31444/root/chroot_tmpdir/scmroot/rust-timebomb'...
$ git fetch origin e2ef9a704ae29d83fc5b298c9026f088cd1ca894:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-timebomb
 * [new ref]         e2ef9a704ae29d83fc5b298c9026f088cd1ca894 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2ef9a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild