$ git clone -n https://src.fedoraproject.org/rpms/rust-strum.git /var/lib/mock/f40-build-2683427-67971/root/chroot_tmpdir/scmroot/rust-strum
Cloning into '/var/lib/mock/f40-build-2683427-67971/root/chroot_tmpdir/scmroot/rust-strum'...
$ git fetch origin f1c0508f11b59d8b3087f0c39a718aa6302db722:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strum
 * [new ref]         f1c0508f11b59d8b3087f0c39a718aa6302db722 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1c0508 Update to 0.26.2 (rhbz#2260683)