I am testing DFwiki, it is a great job. The only thing I can contribute is to test and under Chinese language charset, utf8, zh_tw_utf8 for specific.
Here is the finding:
The text rendering have problem for the version different comparison in
any 3 type of editing tools, ewiki, dfwiki and HTMLEditing. The bigger
problem is HTMLEditing, the tags are not parsed corrected and showed in
the version text infor.
The first image showed the HTML editing diff. The problem area is marked
Next is the version of using ewiki editing. Because of using DFwiki has the same problem so the picture is not provided.
As you can see, English different comparison is ok. But the Chinese charset have the same problem as previous.
Hope this is enough info for finding the solution.
Thanks for the good job again.