Maintenance Workbench Forecasts Capital and Rebuildable Assets in the One Forecast

I am currently testing how EAM forecasts work orders in R12.1.3 when compared to 11.5.10.2. I noticed that in R12 when forecasting for all rebuildable items, the forecast includes capital assets as well. While if you forecast for all capital assets only, it will only forecast for the capital assets.

My forecast parameters are as follows:

When intending to forecast for all capital assets, we leave the MWB parameters blank and click Launch. Select Forecast > All Assets node and run the forecast from there.

When intending to forecast for all rebuildable assets, we tick the Rebuildable flag and click Launch. Select Forecast > All Rebuildable Assets node and run the forecast from there.