"Open Display" action does not work as expected from within "Template/Instance" widget

[Amadrath]

Hi everyone,

if I call an "Open Display"-action from within an instance, it fails because the widgets uses the directory of the Phoebus-Installation as reference for the relative path, instead of the directory of the display file. The same action works fine, if used from a display.
I assume, that the Template/Instance widget does not inherit the root directory from the display, it is part of. Is that intended? Is there a way, to resolve that?

[kasemir]

The template/instance widget is the most recently added widget, relatively new, and this is likely a bug in there that needs to be fixed.
Can you provide a simple example display that demonstrates the issue, that'll help in looking into this in more detail.

[Amadrath]

Here you go:
DEMO.zip
It's three files, one display with the Template/instance widget, one display, that is called by the instance widget and one display, that is to be opened. Simply right-click on the text-widgets, and choose the "Open Plot"-action. It works fine on the non-instanced widget, but generates an error on the instanced ones.

[kasemir]

Thanks for the demo!
For what it's worth, I would use a small action button next to the text update instead of adding an action to the text update.
An action button is pretty obvious. Having to right click on something is not.
But either way it clearly shows the issue and I think it'll soon be fixed