bitbake: cooker: Ensure parseConfiguration clears parsecache_valid

BB_SERVER_TIMEOUT=100 oe-selftest -r bblayers

was failing and highlighted that since parseConfiguation clears data
structures, it needs to also clear parsecache_valid as it no longer
contains correct data.

(Bitbake rev: 7234f33a7eb38ad51a8345f6689bc26e29f29f92)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cooker.py

@@ -418,6 +418,8 @@ class BBCooker:
 
         self.handleCollections(self.data.getVar("BBFILE_COLLECTIONS"))
 
+        self.parsecache_valid = False
+
     def updateConfigOpts(self, options, environment, cmdline):
         self.ui_cmdline = cmdline
         clean = True