GIMP 2.10 a brush in the filter parameters

[Ofnuts]

There is a gimp_context_push() but no gimp_context_pop()? (not sure if that fixes the problem, but that would be the first thing to check)

Edit: correction: there is no gimp_context_push(), there is just a gimp_context_push, which, by not including the call operator (aka ()) is just the method object but doesn't call anything. So no need for a balancing gimp_context_pop(), at best a gimp_context_pop for the same non-effectiveness
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Someone