G4: /Placeholder glyphs are followed by a space when using "Select Sample Text…"

Sample Texts that include /Placeholder glyphs have a space after them in the edit view.
for example:
“nn/Placeholder no/Placeholder oo” with an “x” selected
will render as:
“nix nox oo”.

I’ve also found some differences in how placeholders are handled compared to Glyphs 3:

Case 1
On G4, when I insert/copy plain text, or select a sample string with placeholders, Edit View inserts a slash character after each placeholder.

To follow Josh’s example, my string would render as nix/nox/oo

On G3, that strings would render as nixnoxoo

Case 2
On G4, if I select text containing placeholders and press Cmd+Tab to send that selection to a new tab, the placeholders get replaced by whatever glyph is currently displayed in their place, rather than carrying over as placeholders.

On G3, those placeholders would carry over to the new tab.