Fix Experimental build

The experimental build mode should not remove the build directory neither update the local working copy. Unfortunately this features were brocken because of typos in a comparisson where lower case and upper case modes were mixed.

added BugFix CI/CD labels

requested review from @p.-a.loizeau

assigned to @p.-a.loizeau

I see, this matches the "full upper" case type of the other _BuildType in the same file, such as NYGHTLY or PROFILE, is that right?
and should not be confused with the CBM_TEST_MODEL where the "First Upper then lower case" is used, such as Continuous, Weekly and so on?

approved this merge request

resolved all threads

Dear @f.uhlig, @v.friese, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

merged