Insert link: floating link toolbar for the paragraph block sometimes appears in the wrong place

[talldan]

Describe the bug
The popover/popup thing for editing links in paragraph blocks sometimes appears in the wrong place.

To Reproduce
Steps to reproduce the behavior:

1. Add a paragraph block to a post
2. Add a link to the paragraph block.
3. Observe that the edit popover for the correctly link appears underneath the link
4. Select the post title
5. Click back into the paragaph block on the link
6. Observe that the edit popover is in the wrong place

Expected behavior
The popover should appear underneath the link as in step 3.

Screenshots

Desktop (please complete the following information):

• Reproduced in Chrome, Mac OS

Additional context

• Gutenberg 3.2

[designsimply]

Tested and confirmed with WordPress 4.9.8 and Gutenberg 3.6.2 using Chrome 68.0.3440.106 on macOS 10.13.6 and noting I was unable to see the same problem happen using Firefox 61.0.2. (50s)

[designsimply]

Closed #9246 as a duplicate and noting that the observation in that case is that the floating link toolbar doesn't move properly when clicking between different links in the same paragraph:

Steps to reproduce the behavior:

1. Create a paragraph with multiple links
2. Click on one link, then click directly on another without closing the modal
3. The modal does not move to the second link

^{Tested at alittletestblog.com running WordPress 4.9.8 and Gutenberg 3.6.2 using Chrome 68.0.3440.106 on macOS 10.13.6.}

[arunsathiya]

Noting that I am not able to reproduce this anymore. The popup placement is shown below the selected link, as expected.

I tested for a single link (video) and multiple links placement (video)

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Tested on a local install of WordPress. WordPress 4.9.8 and Gutenberg 3.8.0 using Google Chrome Version 69.0.3497.92 (Official Build) (64-bit) on macOS 10.13.6