$ git clone -n https://src.fedoraproject.org/rpms/deepin-file-manager.git /var/lib/mock/f41-build-3150561-40566/root/chroot_tmpdir/scmroot/deepin-file-manager
Cloning into '/var/lib/mock/f41-build-3150561-40566/root/chroot_tmpdir/scmroot/deepin-file-manager'...
$ git fetch origin b6bf1f078e0d7330e90085c78af953ee581c6e5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-file-manager
 * [new ref]         b6bf1f078e0d7330e90085c78af953ee581c6e5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6bf1f0 qt5 rebuild; rhbz#2312810