lyx2lyx problem with master export to 2.3.x

[Richard Kimberly Heck]

On 6/14/20 2:23 PM, Scott Kostyshak wrote:
> I get the following when exporting the English User Guide to 2.3.x from
> master and opening with LyX 2.3.x. I do not get any terminal output when
> opening in master (i.e., I do not see a problem with roundtrip).
>
>   $ lyx-master -e lyx23x UserGuide.lyx 
>   $ lyx-23x UserGuide.23.lyx 
>   Lexer.cpp (932): Missing 'wide'-tag in InsetFloatParams::read. Got alignment instead. Line: 23656

Just FYI: Once you get one bad tag, you'll often get a bunch more, since
the order is thrown off.

I've fixed this.

Riki