$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-test-support.git /var/lib/mock/f39-build-2204124-51948/root/chroot_tmpdir/scmroot/rust-nu-test-support
Cloning into '/var/lib/mock/f39-build-2204124-51948/root/chroot_tmpdir/scmroot/rust-nu-test-support'...
$ git fetch origin 3d5cbcedbfc5416edf60449438dbe445350d0435:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-test-support
 * [new ref]         3d5cbcedbfc5416edf60449438dbe445350d0435 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d5cbce Update to 0.88.1