tdf#101691 re-intern strings of external formula results [Eike Rathke] tdf#103204 opencl: initialize command queue on demand [Tomaž Vajngerl] tdf#103395 opencl: don't initialize OpenCL when disabled [Tomaž Vajngerl] tdf#85553 intern SharedString of cached external references result [Eike Rathke] tdf#92817 re-implement empty lockfile fix [Mike Kaganski] tdf#94297 avoid further crash with empty Chart document [Stephan Bergmann] tdf#94320 avoid crash with empty Chart document [Stephan Bergmann]