$ git clone -n https://src.fedoraproject.org/rpms/rust-uncased.git /var/lib/mock/f45-build-45858-828/root/chroot_tmpdir/scmroot/rust-uncased
Cloning into '/var/lib/mock/f45-build-45858-828/root/chroot_tmpdir/scmroot/rust-uncased'...
$ git fetch origin e8dc423182258703ad1f866b0672e90ec6361a6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uncased
 * [new ref]         e8dc423182258703ad1f866b0672e90ec6361a6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8dc423 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild