$ git clone -n https://gitee.com/ywyw22/jbigkit /var/lib/mock/dist-an7_9-updates-build-186704-60119/root/chroot_tmpdir/scmroot/jbigkit
Cloning into '/var/lib/mock/dist-an7_9-updates-build-186704-60119/root/chroot_tmpdir/scmroot/jbigkit'...
$ git fetch origin 430183dca765eb0ac9f4d30d17db58e1609802ed:KOJI_FETCH_HEAD
From https://gitee.com/ywyw22/jbigkit
 * [new ref]         430183dca765eb0ac9f4d30d17db58e1609802ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 430183d optimise spec file