[JW Lua] FCTextExpressionDef:DeepSaveAs deletes FCTextBlock properties

[Jan Angermüller]

Jari,

when I use FCTextExpressionDef:DeepSaveAs, I noticed that the (old) 
properties of the expression's FCTextBlock are overwritten. Was this 
intended? If so, could you please add it to the documentation?
In the documentation it currently only says "... (it) makes a copy of 
the text string before resaving."
Maybe that is just what the "_Deep_..." was intended for, but I am not sure.

It means:
When I have a text expression that uses a LineSpacing of 60% (instead of 
the default 100%) and then call DeepSaveAs, the LineSpacing value of the 
expression will automatically be reset to 100%. AFAIK LineSpacing is the 
only relevant value of FCTextBlock that is affected on text expressions.
So if I use DeepSaveAs and want to keep the old LineSpacing, I need 
temporarily save it before calling DeepSaveAs and restore it after 
DeepSaveAs.

Best,
Jan
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