$ git clone -n https://gitee.com/src-opencloudos-rpms/libkperf.git /var/lib/mock/dist-oc8-build-126249-75507/root/chroot_tmpdir/scmroot/libkperf
Cloning into '/var/lib/mock/dist-oc8-build-126249-75507/root/chroot_tmpdir/scmroot/libkperf'...
$ git fetch origin fa6c5f8c7d3699b1d341fcb67bfb6dd8e5285055:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libkperf
 * [new ref]         fa6c5f8c7d3699b1d341fcb67bfb6dd8e5285055 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa6c5f8 import libkperf-v1.2.2-1.tl3