$ git clone -n https://gitee.com/ywyw22/libdatrie /var/lib/mock/dist-an7_9-updates-build-186699-60119/root/chroot_tmpdir/scmroot/libdatrie
Cloning into '/var/lib/mock/dist-an7_9-updates-build-186699-60119/root/chroot_tmpdir/scmroot/libdatrie'...
$ git fetch origin 6733c57e224464186fbc5fe0dde33c2af0854a6b:KOJI_FETCH_HEAD
From https://gitee.com/ywyw22/libdatrie
 * [new ref]         6733c57e224464186fbc5fe0dde33c2af0854a6b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6733c57 optimise spec file