bug#36967: 27.0.50; Duplicate lines in xref output

[Dmitry Gutov]

Version: 28.1

On 09.12.2020 15:57, Dmitry Gutov wrote:
> On 09.12.2020 05:53, Dmitry Gutov wrote:
> > Using xref-file-location-column there kind of breaks the abstraction. 
> > I was thinking more along the lines of text-prop search for the column 
> > inside the summary string:
>
> Although we'll probably make it an optional method, just like 
> xref-location-line is already.

And now done.

I've pushed the slightly tweaked Juri's patch and the change described 
above.

With that, the bug should be fixed now. Please let me know if something 
is still amiss.

Thanks all!