$ git clone -n https://src.fedoraproject.org/rpms/rust-ident_case.git /var/lib/mock/f45-build-42497-794/root/chroot_tmpdir/scmroot/rust-ident_case
Cloning into '/var/lib/mock/f45-build-42497-794/root/chroot_tmpdir/scmroot/rust-ident_case'...
$ git fetch origin 9ed75c9927d355bfce2483a8be4971a318440a0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ident_case
 * [new ref]         9ed75c9927d355bfce2483a8be4971a318440a0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ed75c9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild