$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-attributes.git /var/lib/mock/f45-build-41911-786/root/chroot_tmpdir/scmroot/rust-gix-attributes
Cloning into '/var/lib/mock/f45-build-41911-786/root/chroot_tmpdir/scmroot/rust-gix-attributes'...
$ git fetch origin 5b64bdc3d616d93c761064e68d5b6a8a42276a84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-attributes
 * [new ref]         5b64bdc3d616d93c761064e68d5b6a8a42276a84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b64bdc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild