[LyX/master] Fix crash with polyglossia and intitle commands when lang_auto_end is false

[Richard Kimberly Heck]

On 11/21/19 2:46 AM, Jürgen Spitzmüller wrote:
> Am Donnerstag, den 21.11.2019, 08:24 +0100 schrieb Juergen
> Spitzmueller:
>> commit ed44bc9b12c0385eccf9323159365ae96b1b4f19
>> Author: Juergen Spitzmueller <spitz at lyx.org>
>> Date:   Thu Nov 21 08:38:21 2019 +0100
>>
>>     Fix crash with polyglossia and intitle commands when
>> lang_auto_end is false
>
> Riki, this should go to 2.3.4, if possible.

If it seems safe enough to you. No string changes here as far as I can tell?

Riki