some bugfixes, seems to work now

mission/tmtc/PersistentTmStore.cpp

@@ -338,6 +338,8 @@ ReturnValue_t PersistentTmStore::createMostRecentFile(std::optional<uint8_t> suf
 ReturnValue_t PersistentTmStore::initializeTmStore() {
   Clock::getClock_timeval(&currentTv);
   updateBaseDir();
+  // Reset active file, base directory might have changed.
+  activeFile = std::nullopt;
   return assignAndOrCreateMostRecentFile();
 }