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BugFix: serialization/deserialization.
Merge branch 'exp' of https://github.com/Alllex/Schedule into exp
Merge branch 'exp' of https://github.com/Alllex/Schedule into exp
Merge branch 'exp' of https://github.com/Alllex/Schedule into exp
Merge pull request #14 from Lozov-Petr/exp

BugFix: serialization/deserialization.