BUG: fan: bc value not updated. See #3211

...AM/fields/GeometricFields/GeometricField/GeometricField.C

...fields/pointPatchFields/pointPatchField/pointPatchField.H

...aPatchFields/constraint/processor/processorFaPatchField.H

...niteArea/fields/faPatchFields/faPatchField/faPatchField.H

...eArea/fields/faePatchFields/faePatchField/faePatchField.H

...a/fields/faePatchFields/faePatchField/faePatchFieldBase.C

...elds/fvPatchFields/constraint/cyclic/cyclicFvPatchField.H

...atchFields/constraint/jumpCyclic/jumpCyclicFvPatchField.H

...elds/constraint/jumpCyclicAMI/jumpCyclicAMIFvPatchField.H

...teVolume/fields/fvPatchFields/fvPatchField/fvPatchField.H

...olume/fields/fvsPatchFields/fvsPatchField/fvsPatchField.H

...e/fields/fvsPatchFields/fvsPatchField/fvsPatchFieldBase.C