Unable to remove a defined restraint file

[amjjbonvin]

In the workflow builder, when assigning an ambiguous distance restraint file to e.g. the rigidbody step, it is automatically propagated to all other modules using restraints. I understand this can be handy and you can always select another restraint file if needed.

But there is no option to fully remove a restraint file, i.e. not use any (except selecting an empty file as a fix).

[amjjbonvin]

Correction - it seems the restraints are not automatically propagated, but a button to delete a selected restraint file would be handy

[sverhoeven]

In Google Chrome, if I cancel the file picker then the parameter is cleared.

I see Firefox does not clear on cancel.

The latest rjsf has a cancel button, it could be backported to rjsf version used by this repo.