$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-locale-macros.git /var/lib/mock/f38-build-side-43-rust-devel-1399503-31134/root/chroot_tmpdir/scmroot/rust-unic-locale-macros
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1399503-31134/root/chroot_tmpdir/scmroot/rust-unic-locale-macros'...
$ git fetch origin 9d7e8af2f77c0322d8d804f4e77efec6ae64aa12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-locale-macros
 * [new ref]         9d7e8af2f77c0322d8d804f4e77efec6ae64aa12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d7e8af Update to version 0.9.1; Fixes RHBZ#2136331