$ git clone -n https://src.fedoraproject.org/rpms/rust-unicode-width.git /var/lib/mock/f45-build-45928-829/root/chroot_tmpdir/scmroot/rust-unicode-width
Cloning into '/var/lib/mock/f45-build-45928-829/root/chroot_tmpdir/scmroot/rust-unicode-width'...
$ git fetch origin a7ef1f72ea5f66a2dee1bc9b9631e8df445d32ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unicode-width
 * [new ref]         a7ef1f72ea5f66a2dee1bc9b9631e8df445d32ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7ef1f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild