Gap between adjacent annotations

When creating an annotation just after another, a gap appears between them.

Steps to replicate the bug:

• Start the creation of an annotation.
• Displace the cursor to the right or move it with the Right key.
• Finish the annotation by typing Enter twice.
• Type Right to move the cursor one frame forward.
• Type Enter three times to create a new annotation.

Result: There will be a gap between the two annotations, but it should not.