Copying a message turns \n into Unicode line separator

[opk12]

Description

A Unicode line separator character is copied in place of the \nthat was sent.

Steps to reproduce

• Select, and copy, a message with json body a\nb.
• Paste into the github new issue form, it becomes ab (without newline).
• Paste into nano, it becomes a b (space without newline).
• Paste into gvim, it becomes a, followed by an arrow symbol, b.

printf '%s' '<paste here>' | hexdump -C shows that e2 80 a8 (which apparently is UTF-8 for the Unicode "LS Line Separator" \u2028) is copied in place of the usual Unix newline 0a ASCII line feed.

Version information

Quaternion 0.0.95.1 on Fedora 35
Quaternion 0.0.9.5 on Debian 11

[opk12]

For completeness - this is not specifically about HTML messages, it also happens with plain-text messages without formatted_body.

[KitsuneRal]

Thanks; looks like text conversions along the way accidentally de-screen \n into an actual line-break.