Various UI/Ajax bugs caused by closing a paragraph modal (while editing or creating the paragraph)

How to reproduce:

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1. Disappearing ERL layout container edit button
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1. Edit an existing paragraph by clicking the ERL pen icon
2. Close the modal without saving
3. ==> The pen icon is gone, you have to reload / save the node to get it back.

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2. Empty (add) paragraphs list
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1. Add an ERL layout container
2. Click the blue add button inside a region and select any paragraph type, so the modal opens
3. Close the modal without saving
4. Click the blue add button again ==> The list ist empty

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3. Adding a new paragraph opens the edit modal/form from the last edited paragraph & the paragraph edit form is also added to the paragraph preview
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This has happened to me multiple times. But i can't give you a concrete way to reproduce this - still trying. I will update this...

Update: A little weird way to reproduce this, but this will cause the second part of the description above (the paragraphs form is added to the preview):

1. (Edit your existing node, with existing layouts and paragraphs)
2. Add a new ERL layout container
3. Add a new Paragraph to this ERL layout container and save it
4. Edit your newly added Paragraph and close the modal without saving
5. Add another new Paragraph to your new ERL layout container ==> Boom, result like described above.