$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-test-support.git /var/lib/mock/f39-build-1696664-41181/root/chroot_tmpdir/scmroot/rust-nu-test-support
Cloning into '/var/lib/mock/f39-build-1696664-41181/root/chroot_tmpdir/scmroot/rust-nu-test-support'...
$ git fetch origin a5dc9518513e8474b0c35549aaa1e158cd22b22e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-test-support
 * [new ref]         a5dc9518513e8474b0c35549aaa1e158cd22b22e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5dc951 Update to 0.86.0