Failed open project after commit "Fix reparsing after switching build configurations"

One of my projects stopped opening after the commit "QbsProjectManager: Fix reparsing after switching build configurations" / af62a9590c33dd9daec1bab49cc4a9494410aa62

When I open the project it freezes at the stage, see pict.1. Further no action occurs, no errors are displayed.
My project: https://github.com/hkarel/qTox
branch: qbs-build

Order reproduce the problem:
1. Create a session and open the project qTox
2. After configuring the build profile, a bunch of errors from Probe. But it is not important.
3. Close the QtC.
4. Run QtC and open session qTox.
5. We get the state on pict.1

The remaining projects open correctly.