IsAvailable variable setting for luma component

[parkmw]

In the last part in section 8.7.5.1, IsAvailable is set to use for checking whether a neighboring block is available in next CU decoding as shown below.

The following assignments are made for i = 0..nCurrSw * SubWidthC − 1, j = 0..nCurrSh* SubHeightC − 1:

IsAvailable[ cIdx ][ xCurr * SubWidthC + i ][ yCurr * SubHeightC + j ] = TRUE (1201)

When cIdx == 0 (luma case), the coordinate calculation seems to have an issue.
It seems SubWidthC and SubHeightC should not be used for luma, but only used for chroma.
I asked an expert about this issue, and he confirmed the issue and kindly provided the following fix.
Please take a look at this and correct me know if I am wrong.

The variables subW and subH are derived as follows:

subW = cIdx = = 0 ? 1 : SubWidthC (xxxx)
subH = cIdx = = 0 ? 1 : SubHeightC (xxxx)

The following assignments are made for i = 0..nCurrSw * subW − 1, j = 0..nCurrSh * subH − 1:

IsAvailable[ cIdx ][ xCurr * subW + i ][ yCurr * subH + j ] = TRUE (1201)

[yk]

Thanks! To be fixed in JVET-Z2005-v1.