Mesh transformation changes are not always applied in the viewport

[Jeronimoo]

This could occur with other settings than mesh transformations, but I only tested these (namely I tested scale and rotation).

Steps to reproduce:

• Create a mesh with any geometry
• Change the scale of that mesh through the keyboard as opposed to scrolling values with the mouse
• Do NOT hit enter, but instead click inside the scene
• See how the value is not reflected in the viewport.

Note: Clicking inside the right pane instead of the scene doesn't trigger this problem.

The bug probably happens because the right pane often changes to general settings when the scene is clicked, and I suppose that values being edited are not saved or applied properly when the right pane changes.

Workaround:
Validate with enter instead, or by clicking somewhere in the right pane.
And to get rid of the problem once it has occurred, one need to change the value, validate it, and change it back to what they wanted initially. Then validate it properly.