message: Only do early channelExtract splatting for regular formatted textures
diff: @@ -1049,8 +1049,8 @@ bool ReplayController::SaveTexture(const TextureSave &saveData, const char *path
  // if we want a grayscale image of one channel, splat it across all channels
  // and set alpha to full
  - if(sd.channelExtract >= 0 && td.format.compByteWidth == 1 &&
  - (uint32_t)sd.channelExtract < td.format.compCount)
  + if(sd.channelExtract >= 0 && td.format.type == ResourceFormatType::Regular &&
  + td.format.compByteWidth == 1 && (uint32_t)sd.channelExtract < td.format.compCount)
  {
  uint32_t cc = td.format.compCount;
  