$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4_0.9.git /var/lib/mock/f45-build-41841-786/root/chroot_tmpdir/scmroot/rust-gdk4_0.9
Cloning into '/var/lib/mock/f45-build-41841-786/root/chroot_tmpdir/scmroot/rust-gdk4_0.9'...
$ git fetch origin aa229910cf17aadcad836ca45a68ce57d320a4da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4_0.9
 * [new ref]         aa229910cf17aadcad836ca45a68ce57d320a4da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa22991 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild