Projects always compile/link since 2.2.0/1 event if there are up-to-date

The new plugin is amazing in term of speed improvement.

But I has a big draw back. The project convert to the new system with build rules, always build/link even if there is nothing to do.

To reproduce the problem:

• Open Visual Studio
• Create a new Qt Console project
• Compile it
• Clic again on Compile button and see that the linker (and pre build event) are relaunch.

If you try the same thing with previous addons (or a simple VS project), once the project is compile, I not recompile again.

It's very annoying with big solutions with lot of projects. It could take a long time to just redo build event and linking (like 30s to 1 minute) while all projects are already up to date.

I joined to this issue, the log ouput when we re-build with detailed output set.

QtAddinsAlwaysReLink.txt