$ git clone -n https://src.fedoraproject.org/rpms/webkitgtk.git /var/lib/mock/f41-build-2655910-28343/root/chroot_tmpdir/scmroot/webkitgtk
Cloning into '/var/lib/mock/f41-build-2655910-28343/root/chroot_tmpdir/scmroot/webkitgtk'...
$ git fetch origin 867ab954cb042366b8b75100360e849bb81441ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/webkitgtk
 * [new ref]         867ab954cb042366b8b75100360e849bb81441ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 867ab95 enable build with clang on ppc64le