Issue #2752961 by dawehner, Wim Leers, Jo Fitzgerald, chr.fritsch, bradjones1, anavarre, greg.1.anderson, Berdir, moshe weitzman, alexpott, bkosborne, Crell, msonnabaum, joelpittet, catch, deviantintegral, lauriii, cilefen, effulgentsia, xjm: No reliable method exists for clearing the Twig cache