Move calls to init<..>Label functions preUpdateConversions > isDataOK
Move calls to init<..>Label functions preUpdateConversions > isDataOK

Move calls to init<..>Label functions from preUpdateConversions()
to isDataOK(). Final fix for bug when isDataOK() is called on
an uninitialized DbBeanLanguage object.

cpythoud/beanmaker,cpythoud/beanmaker