$ git clone -n https://src.fedoraproject.org/rpms/loupe.git /var/lib/mock/f41-build-1021915-18041/root/chroot_tmpdir/scmroot/loupe
Cloning into '/var/lib/mock/f41-build-1021915-18041/root/chroot_tmpdir/scmroot/loupe'...
$ git fetch origin 698f0f0d74992afe6a9bec1707f2327533a6cf84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/loupe
 * [new ref]         698f0f0d74992afe6a9bec1707f2327533a6cf84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 698f0f0 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces