Bugs during an iteraction with metadata (OCR tasks)

[thatregularguy]

Describe the bug

1. Metadata changes do not get applied for BBoxes in already completed tasks,
2. The first pressed button during the metadata entry changes the BBox class if it is a hotkey for another class.

To Reproduce
Steps to reproduce the behavior:
Bug 1:

1. Create a project for an OCR task,
2. Submit a task with a BBox with a metadata ("Completed") or pre-annotate the samples using pre-trained models,
3. Open the same task,
4. Change the metadata for the corresponding annotation,
5. Update the changes,
6. The metadata changes will not be applied.

Bug 2:

1. Create a project for an OCR task,
2. Define at least 2 different BBox types,
3. Create an annotation with one of the classes,
4. Enter the first symbol in the metadata,
5. If the symbol is in the numeric keypad and is bound to one of the BBox types, the selected BBox will change its type. The bug doesn't occur when the symbol is entered from the QWERTY part.

Expected behavior
Bug 1: The metadata changes should be applied whenever I edit the mentioned BBoxes,
Bug 2: The type of the annotation shouldn't be changed during the metadata entry.

Environment (please complete the following information):

• ECN2 instance,
• Label Studio v1.16.0,
• Project layout: Object Detection with Bounding Boxes