Calc doesn't the font size of the cell, and thus the cell height.
But it does so with other format propierties, like font type, angle of orientation, etc.
Id. de compilación: 1:5.0.3~rc2-0ubuntu1~trusty2
Configuración regional: es-AR (es_AR.UTF-8)
I think, this behaviour might be similar to bugs num: 90135, 90136, and 90137.
feature request -> NEW
See also tdf#112324 for Writer, which was rejected:
> Changes in dropdown controls should not get applied unless the user clicks
> an entry or leaves the control (i.e. tab) because of safety and performance