$ git clone -n https://src.fedoraproject.org/rpms/rust-xdg.git /var/lib/mock/f45-build-46253-832/root/chroot_tmpdir/scmroot/rust-xdg
Cloning into '/var/lib/mock/f45-build-46253-832/root/chroot_tmpdir/scmroot/rust-xdg'...
$ git fetch origin 9f0e962f3f55454888da3cf6c582af279c9bef15:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-xdg
 * [new ref]         9f0e962f3f55454888da3cf6c582af279c9bef15 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f0e962 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild