Expected behavior

I expect that if I select existing text in the block editor, I can add a link to that text.

Actual behavior

If I select text in the block editor and try to add a link to it, the link is added after the text I had selected. (Tested in WPiOS and WPAndroid, and I only observe the issue in WPiOS.)

Steps to reproduce the behavior

1. Add a paragraph block.
2. Enter text in the block.
3. Select some of the entered text.
4. Tap the link button.
5. Note that there is no Link Text prefilled. Enter a URL (and optionally, link text).
6. Close the editor and observe that the URL or linked text is added after the text you selected in step 3.

Tested on WPiOS 13.2.1.2 TestFlight beta on iPhone XS, iOS 13.1 public beta.