setting variable `calfw-blocks-earliest-visible-time` with a value different than the default it does not display any blocks

[pedro-nonfree]

Thanks for writing this piece of software, very useful to have that visualization that we lack with plain calfw, etc.

The software in my case works fine except when I tried different values different than the default one (setq calfw-blocks-earliest-visible-time '(0 0)); my favourite test was (setq calfw-blocks-earliest-visible-time '(7 0))

using emacs-30 branch with commit 44c2614

and according to package-list-packages , these are the versions of the revelant calfw packages

  calfw                          20180118.45    dependency            Calendar view framework on Emacs
  calfw-org                      20170411.220   dependency            calendar view for org-agenda