IE9 Pasting a table after a styled paragraph results in various problems

[Joel]

Reproduced when the content is set to output XHTML with bolding using a span with a class "Bold".

​Example in JSFiddle IE9 in JSFiddle with 3.5.2 but reproduced in 3.6.4 locally and in ​nightly examples as well.

Copy the table above the "test" paragraph, place the caret to after test like "test|" and then paste or press enter to create a new paragraph and then paste. The pasted table gets placed inside the same p and span elements that the text "test" is in. This also causes that all text within the table to be bolded and cannot be unbolded. After this issue, the mangled source leads to very strange results for actions, such as placing the caret back to "test|" and presing enter completely removes the "test" text. Undoing the paste and redoing it results in different results; the table is no longer bolded nor inside the p element.

Switching to the source and back helps, but isn't really a solution.

[Jakub Ś]

DUP of #8736