Sharepoint versioning bug with tables

Hi,
So i have discovered a bug with the versioning in my sharepoint sitepage.
When i edit a random piece of text ie. the title, in a text webpart with a table inside. The table shows up as changed in the version history of the sitepage. 

Below is an example of the issue. Here i've changed the title from "TitleChange" to "Title" and nothing else. The tables however still show as if they were changed. 
The first 2 tables are created with the built in tool in the text webpart, but the bottom 2 tables were created in word and then copied over to sharepoint. And as you can see the last table does not change as its suppose to, but the 3. table does. I figure its because something happens when you merge cells.

So sharepoint does some sort of formatting that changes nothing but shows as changed. It only affects the table either when its made in sharepoint (1. & 2. table) or have merged cells (3. table), but not when its copied from word and has no merged cells.
I've tried taking the html out and compared the before and after using powershell, but theres no change there.

So can i stop this from happening or is there perhaps some sort of work around, so the tables dont show up as changed when they're infact not?

1.2.3.

4.