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openforis
adding a chain to unpublished survey causes PUBLISH to crash
Use in Arena UI the following default values. 
it could happen that in Collect an attribute is defined after another (looking at the Data Structure view in the Survey Designer), so some expressions could refer an attribute not...
- use a component like react-dropzone (most used one according to npmtrends): https://react-dropzone.js.org/ - handle upload progress
survey name: testi_1, form 'plot' Note: 'plot' contains also computed result attributes. 
In data, there can be an attribute that is directly recorded as "area-based", such as canopy coverage, or counted directly per hectare basis. This attribute will not be recomputed in...