Detritus flags are incorrectly cleared

[villyc]

To reproduce:

• Load a model with more than one detritus group
• Enter a sum of detritus values > 1 for a group
• Run Ecopath

A message will pop up informing the user of the incorrect values. In the detritus fate grid however the wrong values are cleared. Any newly entered values do not show up

The values should not be cleared.

[jeroens]

The issue is made worse by the fact that newly entered detritus fate flags are stored in the Core, but are not visible. This in turn affects the respiration calculations.

[jeroens]

The issue is fixed in cCore; detritus fate values are no longer cleared