Cancel "build mode" fails

Original Reporter info from Mantis: errno

• Reporter name:

Description:

The project options dialog does'nt cancel correctly the build mode when the dialog is opened by clicking on the
"Change build mode" tool buton .

Steps to reproduce:

-- open a project with at least two build modes .
-- click on "Change build mode" tool buton
-- change the build mode
-- click on cancel to close the window 

-- verify the active build mode in project option .

Additional information:

patch added

Mantis conversion info:

• Mantis ID: 36736
• OS: windows
• OS Build: 10
• Build: 62674
• Platform: PC
• Version: 2.1 (SVN)
• Fixed in revision: r62679 (#42beb70c)