If I attempt to save the constraints without applying new design constraints (as in the example below), there is a pop-up "Save Constraints" dialog that indicates I am closing my design.
% create_clock -period 10 -name <clock name>
The text in the dialog is as follows:
"There are uncommitted timing constraints.
Do you want to apply the constraints before closing?"
I want to save the constraints, but the dialog is indicating that I am trying to close something (but, I am not sure what).
The dialog is inaccurate, it should read as "... before saving".
In Vivado Design Suite 2013.1, the text in the dialog is modified as:
There are uncommitted timing constraints.
Do you want to apply the constraints before saving?