Problem with HTML displaying in jupyter & ipykernel 4.7.0

Hello!
I have some simple html code and I want to display it in Jupyter notebook.
But with new ipykernel==4.7.0 I get some strange string that looks like some kind of hash instead of my html table.
Here is minimal example: https://gist.github.com/vhaldemar/8e07ae17c993ba39e092163b946808b9

Start by running the minimal example from the linked gist with ipykernel 4.7.0 in a Jupyter notebook and compare the displayed output with the expected HTML table. Trace the HTML display behavior in the kernel and verify that the completed fix renders the table instead of the hash-like string.

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