$ git clone -n https://gitee.com/gcdota930915/compiler-rt18.git /var/lib/mock/dist-an23.3-build-426619-72997/root/chroot_tmpdir/scmroot/compiler-rt18
Cloning into '/var/lib/mock/dist-an23.3-build-426619-72997/root/chroot_tmpdir/scmroot/compiler-rt18'...
$ git fetch origin 26ff5339e4c1f20b2f6a73e6e425f19111a319bc:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/compiler-rt18
 * [new ref]         26ff5339e4c1f20b2f6a73e6e425f19111a319bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26ff533 Enable loongarch64