$text: Next Proc statement is skipped when using empty messag/help text name

Summary:
Uniface: The next Proc statement may not be executed when passing an empty
IDString (message or help text name) to $text.

Symptoms:
The next Proc statement may not be executed when passing an empty IDString
(message or help text name) to $text.

Consider the following scenario:

1. The following Proc is added to the Execute trigger of the form component FRM1

message/error $text() ; or $text("")
return (0)
message/info "How did we get here?"

2. The form FRM1 is executed

3. The error message is displayed with the text "8006 - No text available with
ID"

4. The info message is displayed with the text "How did we get here?"

=> The return statement after message/error is not executed