$ git clone -n https://src.fedoraproject.org/rpms/rust-xdg2.git /var/lib/mock/f45-build-46229-832/root/chroot_tmpdir/scmroot/rust-xdg2
Cloning into '/var/lib/mock/f45-build-46229-832/root/chroot_tmpdir/scmroot/rust-xdg2'...
$ git fetch origin 2c7319e769d1370c19d683b2e741d9bb69925f55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-xdg2
 * [new ref]         2c7319e769d1370c19d683b2e741d9bb69925f55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c7319e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild