Qt Creator Freezes when with Docker plugin

With Cmake when using the experimental Docker plugin, QtCreator freezes during the configuration stage when Docker container added as external device.

• When configuring the project, QtCreator freezes for several minutes. The whole UI is frozen, and the window-manager suggests killing the application.
After waiting for several minutes, QtCreator unfreezes, and we can proceed to build the project without issues, at normal speed.
• The issue happens again if we change the project in a way that requires a reconfiguration, for instance: if we add a new source file.
• The issue happens every time we re-open the project with QtCreator.

This works good when using a local kit, the project's configuration takes just a few seconds, and does not freeze QtCreator.