Fixed default undefined, fixed double change

[bsekachev]

Switch source when change zOrder, occluded, outside, keyframe since they are part of position
Fixed double undo/redo actions on every change
Fixed undefined source on client

Motivation and context

Some fixes for recent PR #1192

How has this been tested?

Manual testing

Checklist

• I submit my changes into the develop branch
• I have added description of my changes into CHANGELOG file
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (read github docs)
• I have increased versions of npm packages if it is necessary (cvat-canvas,
  cvat-core, cvat-data and cvat-ui)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.
• I have updated the license header for each file (see an example below)

# Copyright (C) 2020 Intel Corporation
#
# SPDX-License-Identifier: MIT

[coveralls]

Pull Request Test Coverage Report for Build 6606

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 211 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.04%) to 64.984%

---

Files with Coverage Reduction	New Missed Lines	%
cvat/apps/engine/media_extractors.py	1	75.81%
src/object-state.js	10	87.01%
src/annotations-objects.js	200	62.02%

Totals
Change from base Build 6575:	0.04%
Covered Lines:	11096
Relevant Lines:	16673

---

💛 - Coveralls

[nmanovic]

@Priya4607 , could you please test and review the patch?

[Priya4607]

@Priya4607 , could you please test and review the patch?

Sure, I'll test it this weekend.

[Priya4607]

@bsekachev
Hi, one quick question, how does switching source in case of occluded, keyframe, outside work. As in when I switch to occlusion for an auto annotated box will it change to manual?

[bsekachev]

Hi, one quick question, how does switching source in case of occluded, keyframe, outside work. As in when I switch to occlusion for an auto annotated box will it change to manual?

Yes

[Priya4607]

Hi, one quick question, how does switching source in case of occluded, keyframe, outside work. As in when I switch to occlusion for an auto annotated box will it change to manual?

Yes

But when I switch occluded for auto annotated box, I notice that the value does not change to manual. Unless I move the box.

[bsekachev]

@Priya4607

Hmm, yes. Actually I checked it only for tracks. Now it is fixed.