$ git clone -n https://src.fedoraproject.org/rpms/rust-libmount.git /var/lib/mock/f40-build-2527868-61827/root/chroot_tmpdir/scmroot/rust-libmount
Cloning into '/var/lib/mock/f40-build-2527868-61827/root/chroot_tmpdir/scmroot/rust-libmount'...
$ git fetch origin 437653115c484678235217950179f7b66f41b248:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libmount
 * [new ref]         437653115c484678235217950179f7b66f41b248 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4376531 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild