$ git clone -n https://src.fedoraproject.org/rpms/rust-lcms2-sys.git /var/lib/mock/f38-build-side-43-rust-devel-1420639-31461/root/chroot_tmpdir/scmroot/rust-lcms2-sys
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1420639-31461/root/chroot_tmpdir/scmroot/rust-lcms2-sys'...
$ git fetch origin 96c2ec42825c8320f3266d9024406726f38d755a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lcms2-sys
 * [new ref]         96c2ec42825c8320f3266d9024406726f38d755a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96c2ec4 Update to version 4.0.2; Fixes RHBZ#2234622