Mongolian Joining Type

[Richard Wordingham]

On Sun, 2 Aug 2015 22:23:19 +0100
Richard Wordingham <richard.wordingham at ntlworld.com> wrote:

> As far as I can tell, it is currently supposed to be controlled by the
> property joining_type. However, this property appears only to have
> been non-trivially assigned to the characters of the Mongolian script
> from Version 6.3.0.  How was categorisation assigned before then?

Is there anyone alive and here who remembers?  Or knows where to find
the information?  (As opposed to merely knowing where the information
ought to have been recorded.) 

Richard.