In report builder if the charts contain date or time then the generated chart appear without content. This is fixed by adding appropriate handling of date and time value cases. Change-Id: Idfa0e03645e1e8130707fc541b155fd53311572d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/206232 Tested-by: Jenkins Reviewed-by: Vissarion Fisikopoulos <vfisikop@libreoffice.org>