Fixing incorrect history reading bug

src/data/entities.rs

@@ -1,5 +1,5 @@
-use crate::core::srs::{FADE_PER_DAY, MAX_SCORE, WordOpenMode};
-use crate::data::{Id, SmallId, INVALID_ID};
+use crate::core::srs::{WordOpenMode, FADE_PER_DAY, MAX_SCORE};
+use crate::data::{Id, INVALID_ID};
 use crate::data_provider::history::HistoryRepositoryInner;
 use chrono::{DateTime, Local, NaiveDate, Utc};
 use fsrs::MemoryState;
@@ -101,6 +101,9 @@ impl HistoryRepositoryInner {
                     count = 0;
                 }
             }
+            if count != 0 {
+                counts.push((date, count));
+            }
         }
         counts
     }