Issue Summary

When selecting text in a file on the source view, the selection area is not correctly aligned with the pointer / mouse.

Steps to Reproduce

1. Go to the Repository Source view
2. Open a file
3. Try selecting text in the file contents

Expected Results

• The selection should exactly match the cursor position.
• Moving the cursor to the right should not change the start of the selection.
• Moving the cursor to the right should not make the end of the selection move backwards.

Actual Results

• The selection does not exactly match the cursor position.
• Moving the cursor to the right can change the start of the selection.
• Moving the cursor to the right can make the end of the selection move backwards.

Workaround

Use the 'Open raw' mode.