$ git clone -n https://src.fedoraproject.org/rpms/rust-inferno.git /var/lib/mock/f40-build-2660235-66918/root/chroot_tmpdir/scmroot/rust-inferno
Cloning into '/var/lib/mock/f40-build-2660235-66918/root/chroot_tmpdir/scmroot/rust-inferno'...
$ git fetch origin 53f723a828d3552be2867e432afdc6cb032d8401:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-inferno
 * [new ref]         53f723a828d3552be2867e432afdc6cb032d8401 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53f723a Bump quick-xml dependency from 0.28 to 0.30