Android delete forward at end of block causes selection to jump

[lawrencesin]

Description
When you are at the end of a block and hit the DEL key to trigger a deleteForward, the cursor jumps to the next block, deletes a character, then jumps back to the end of the block. it deletes the first character on the next block but leaves that block intact; it takes another key press on the delete key to merge the blocks.

Recording

Sandbox
https://www.slatejs.org/examples/richtext

Steps
To reproduce the behavior:

1. On an Android device
2. Go to https://www.slatejs.org/examples/richtext
3. Tap on the end of any block, that has a following block with content.
4. Press the DEL key once
5. Notice the first character of the next block is deleted, but they aren't merged

Expectation
The first character of the following block should be deleted and the two blocks should be merged into one.

Environment

• Slate Version: 0.110.1
• Operating System: Android
• Browser: Chrome