Merge pull request #7197 from mermaid-js/fix/5496-gantt-tickinterval-app-crash

5496 : fixed UI crash from excessive tick generation with invalid dates/intervals

cypress/integration/rendering/gantt.spec.js

@@ -833,4 +833,34 @@ describe('Gantt diagram', () => {
       {}
     );
   });
+  it('should handle seconds-only format with tickInterval (issue #5496)', () => {
+    imgSnapshotTest(
+      `
+     gantt
+     tickInterval 1second
+     dateFormat ss
+     axisFormat %s
+
+     section Network Request
+     RTT : rtt, 0, 20
+    `,
+      {}
+    );
+  });
+  it('should handle dates with year typo like 202 instead of 2024 (issue #5496)', () => {
+    imgSnapshotTest(
+      `
+     gantt
+     title Schedule
+     dateFormat YYYY-MM-DD
+     tickInterval 1week
+     axisFormat %m-%d
+
+     section Vacation
+     London : 2024-12-01, 7d
+     London : 202-12-01, 7d
+    `,
+      {}
+    );
+  });
 });