Right now, the command 'Edit / Show Completions' seems to show all known functions, variables, ... This is not my understanding of 'completing' a partially typed text.
Let's assume I am typing my_functi and want to see possible completions, e.g. my_function_simple and my_function_complicated - but obviously I do not want to see ATTR_HT_HASH_FUNCTION... simply because this CAN NOT complete my typed text... it could replace it, but this is not the idea of function completion.
I am attaching two figures showing the issue...