$ git clone -n https://src.fedoraproject.org/rpms/rust-unicase.git /var/lib/mock/f45-build-45900-829/root/chroot_tmpdir/scmroot/rust-unicase
Cloning into '/var/lib/mock/f45-build-45900-829/root/chroot_tmpdir/scmroot/rust-unicase'...
$ git fetch origin f9110b7e06070213a1b9be96c25a7512be1bd26f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unicase
 * [new ref]         f9110b7e06070213a1b9be96c25a7512be1bd26f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9110b7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild