Issue Summary

In a table cell with multiline text, when we select a line/word and press Shift+arrow down, the cursor jumps to the end of the page or selects all the content of the table

Steps to Reproduce

1. Create a page and insert a table in it.
2. Add multiline text in the rows
3. Select a word in the multiline text or simply place the cursor inside the table and press Shift + Arrow down.

Expected Results

Pressing Shift + down arrow should extend the selection to the same horizontal position one line down, if possible. If the current line is the last line, the selection should extend to the end of the line. 

Actual Results

The cursor moves to the end of the table, selecting all the content in the table.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available