$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-locale-impl.git /var/lib/mock/f38-build-side-43-rust-devel-1397582-31052/root/chroot_tmpdir/scmroot/rust-unic-locale-impl
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397582-31052/root/chroot_tmpdir/scmroot/rust-unic-locale-impl'...
$ git fetch origin 38e8500d003b7fd99dd7bf9b361c0388700774b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-locale-impl
 * [new ref]         38e8500d003b7fd99dd7bf9b361c0388700774b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38e8500 Update to version 0.9.1; Fixes RHBZ#2136330