Issue with point region doesn't work in Firefox

[bsekachev]

My actions before raising this issue

• Read/searched the docs
• Searched past issues

Expected Behaviour

Can create issue with point region

Current Behaviour

Can't create issue with point region

Possible Solution

Investigate & fix.

Steps to Reproduce (for bugs)

1. In firefox open a task
2. Go to review mode
3. Try to create issue using point
4. Canvas doesn't react

Context

Your Environment

• Git hash commit (git log -1): a04d95d
• Docker version docker version (e.g. Docker 17.0.05):
• Are you using Docker Swarm or Kubernetes?
• Operating System and version (e.g. Linux, Windows, MacOS):
• Code example or link to GitHub repo or gist to reproduce problem:
• Other diagnostic information / logs:
  Logs from `cvat` container

Next steps

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