$ git clone -n https://gitee.com/rabbitali/gdcm.git /var/lib/mock/dist-an23-epao-build-463366-73842/root/chroot_tmpdir/scmroot/gdcm
Cloning into '/var/lib/mock/dist-an23-epao-build-463366-73842/root/chroot_tmpdir/scmroot/gdcm'...
$ git fetch origin ea81fd3f3928d0ebb1ebbc1dcd572d7c3808b16c:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/gdcm
 * [new ref]         ea81fd3f3928d0ebb1ebbc1dcd572d7c3808b16c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea81fd3 Rebuild by poppler