Guard experimental graph build path #245

Job	Run time
Standalone Package Export Check	5m 8s
Configuration Coverage	8m 27s
Build (gcc)	4m 16s
Build (clang)	3m 57s
Runtime Smoke Checks	4m 16s
Static Analysis	9m 50s
Valgrind Checks	4m 1s
CLI Strict CI Summary	3s
	39m 58s

Provide feedback