qubes clipboard mangles text character (emdash)

[Ryan Tate]

When pasting text through the Qubes Clipboard, I noticed the emdash character (—) is silently removed.

Reproduction:

Copy this text, paste it elsewhere in SAME AppVM (so no Qubes Clipboard involvement): One — two three.

It should paste fine.

Copy the same text to the Qubes Clipboard (Control-C Control-Shift-C), paste into same program in DIFFERENT AppVM with Control-Shift-V Control-V.

Expected: Text is same

Seen: Text is mangled, no more "—".

Now, Joanna of the Qubes team has written that Qubes only uses the passive X11 clipboard with no "rich text" (https://groups.google.com/forum/#!msg/qubes-devel/fgjEKCOnM7E/zciO65Vm_lcJ). But this is still just plain text, albeit utf-8, it should work fine in passive mode. From what I can tell googling around, X11 clipboard supports utf8/Unicode so even if emdash is non ASCII shouldn't it still be supported? Is there some security risk to pasting unicode text, or is this a bug?

Thanks for any insights.

[awokd]

Can confirm the behaviour but afraid no insights here. Could maybe try
asking on qubes-devel or just submitting as an issue?