Incorrect number of pages for econ

Hello,

the number of pages for econ template is incorrect, even on Overleaf. See https://www.overleaf.com/latex/templates/fithesis4-for-the-faculty-of-economics-and-administration-at-the-masaryk-university-in-brno/svbfjnkxfjtd.pdf, I'm using the latest version of templates available at https://www.ctan.org/pkg/fithesis. This bug also appears for sci template and probably all other templates that use number of pages.

The reported number of pages is 11 + 39, which is wrong, as it's (probably?) supposed to be 39, or 11 + 28, either way, the preamble seems to be counted twice. I have no clue, which is correct, but I guess returning just the sum is totally fine.

Ended up removing preamble pages from /usr/share/texmf/tex/latex/fithesis/style/mu/fithesis-mu-base.sty:578 and /usr/share/texmf/tex/latex/fithesis/style/mu/fithesis-mu-base.st:630