Another memory leak (LyXParagraph::SetFont)

[Jean-Marc Lasgouttes]

Another leak spotted by purify:

         MLK: 9856 bytes leaked in 3 blocks
         This memory was allocated from:
               malloc         [rtlib.o]
               
insert_aux__t6vector2ZQ212LyXParagraph9FontTableZt24__default_alloc_template2b0i0PQ212LyXParagraph9FontTableRCQ212LyXParagraph9FontTable
 [stl_alloc.h:151]
               LyXParagraph::SetFont(int,const LyXFont&) [stl_vector.h:164]
                        ++finish;
                      }
                      else
               =>       insert_aux(position, x);
                      return begin() + n;
                    }
                    iterator insert(iterator position) { return insert(position, T()); 
}
               LyXParagraph::InsertChar(int,char,const LyXFont&) [paragraph.C:679]
               
Buffer::parseSingleLyXformat2Token(LyXLex&,LyXParagraph*&,LyXParagraph*&,const 
lyxstring&,int&,char&,LyXFont&,LyXParagraph::footnote_flag&,LyXParagraph::footnote_kind&)
 [buffer.C:920]
               LyXTabular::OldFormatRead(LyXLex&,const lyxstring&) [tabular.C:1289]
         Block of 5632 bytes at 0x7f1dd0
         Block of 2816 bytes at 0xb4aee8
         Block of 1408 bytes at 0xa91130


I am not sure whether this heppens for _each_ call to SetFont, but I
wonder whether calls like
        fontlist.insert(fontlist.begin() + i+1,
                        FontTable(pos, font));
create a copy of the fonttabe before inserting in the fontlist,
therefore leaking the object created by FontTable().

Lars? A comment?

JMarc