Error decorations persist in jupyter notebooks (ipynb) after resolution

[sfc-gh-catkinson]

When the errors origin lies in a different code cell after resolution the decoration still persists:

Reproducing:

1. create a new jupyter notebook

2. create a new code cell containing

   mymessage = "something very interesting"

3. Create s econd code cell containing

   print(mymessages)

5. Run the two cells , decoration highlights the name error correctly

6. Correct the second cells value to:

   print(mymessage)

7. Run the second cell. the code runs successfully, but the error decoration persists