Re: [SOLVED]

[Thorsten Bonow]

> > > > > Uwe Brauer <oub@mat.ucm.es> writes: 

[...] 

> At this point I give up 

> Uwe 

Don't loose heart...

(defun copy-to-register--no-properties (orig-fun &rest args) 
 "Remove properties of region when calling `copy-to-register'." 
 (let ((filter-buffer-substring-function (lambda (beg end 
 &optional delete) 
					    (if delete 
						(delete-and-extract-region 
						beg end) 
						(buffer-substring-no-properties 
						beg end))))) 
   (apply orig-fun args))) 
(advice-add 'copy-to-register :around 
#'copy-to-register--no-properties) 

Works for me, but the way I understand the manual, instead of 
advising a function, better-registers.el should just modify 
`filter-buffer-substring-function' for its needs.

Hope this helps.

Toto 

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