In JCTVC-O1005_v2:

coding_quadtree( x0, y0, log2CbSize, cqtDepth ) {
...
if( CuPredMode[ x0 ][ y0 ] != MODE_INTRA &&

!( PartMode = = PART_2Nx2N && merge_flag[ x0 ][ y0 ] ) | |
CuPredMode[ x0 ][ y0 ] = = MODE_INTRA && intra_bc_flag[ x0 ][ y0 ] )
rqt_root_cbf

...
}

In the RExt text specification, the aforementioned branch condition looks kind of vague.
Someone may think the first && is carried out prior to the | | while others may do it in reverse order, resulting in a very different consequence.

For example, if the | | are carried out prior to the && and the prediction mode is IntraBC, the rqt_root_cbf will never be parsed.
To prevent from this, I would suggest revising the text as follows:

coding_quadtree( x0, y0, log2CbSize, cqtDepth ) {
...
if( ( CuPredMode[ x0 ][ y0 ] != MODE_INTRA &&

!( PartMode = = PART_2Nx2N && merge_flag[ x0 ][ y0 ] ) ) | |
CuPredMode[ x0 ][ y0 ] = = MODE_INTRA && intra_bc_flag[ x0 ][ y0 ] )
rqt_root_cbf

...
}