$ git clone -n https://src.fedoraproject.org/rpms/rust-linked-hash-map.git /var/lib/mock/f45-build-43013-799/root/chroot_tmpdir/scmroot/rust-linked-hash-map
Cloning into '/var/lib/mock/f45-build-43013-799/root/chroot_tmpdir/scmroot/rust-linked-hash-map'...
$ git fetch origin 6314d9621629aedcef4de206d18e28cd3dd1a25e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-linked-hash-map
 * [new ref]         6314d9621629aedcef4de206d18e28cd3dd1a25e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6314d96 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild