IDE prints globals incorrectly

Description

Using the IDE's execute function to print globals whilst in a subroutine fails

Example code to demonstrate the bug.

global x$
x$ = "b"
CALL routine "a"
End

Sub routine y$
    z$ = y$
End Sub

Now debug through this and at the line z$ = y$ use the execute function to print x$ and y$. y$ correctly reports "a" in the mainwindow, but x$ returns a blank This is important since the IDE hides globals when not at the top level, so executing a print looks like an alternative way of finding the value of a global