Comment 16 for bug 838856

Created attachment 60651
Reconstruct xref table if xref needed but missing

Sorry, I was a little bit too quick and dirty, and not cowardly enough: I missed a condition with splitted xref tables and run too early in trying to reconstruct a (valid) xref table.
This new patch should solve that, but I don't want to waste Your time: I plan to regtest the min linewidth this weekend, so if You haven't spare time to look into it, I'll give an additional comment if this patch is save after regtesting it by my own.