[orca-list] Thunderbird : when writing mail, Orca stops to read lines with link

[Alex ARNAUD <alexarnaud hypra fr>]

Dear all,

Environment:
- Debian Sid updated
- Thunderbird 52.4
- Orca master

When I'm writing an HTML mail and when I add a link to a line, Orca is 
not longer able to read the line.

Steps to reproduce:
1) Open Thunderbird (GTK3 here)
2) Write a new mail (here in a new window)
3) Tab until to switch to the message body
4) Add the following line : "Hello world, I've difficulties to write 
HTML mail in a productive way"
5) Add link somewhere in two words of the line : maybe add a link to "to 
write" that target www.gnome.org
5) Press the return key
6) Press up arrow

Result: Orca stays silent
Expected result: Orca should announce the line when the caret moves on

Best regards.
--
Alex ARNAUD
Visual-Impairment Project Manager
Hypra - "Humanizing technology"