Replace - with 'I' in generated case IDs. (#7989)

Author: isoos

app/lib/admin/models.dart

@@ -126,13 +126,13 @@ class ModerationCase extends db.ExpandoModel<String> {
     opened = clock.now().toUtc();
   }
 
-  /// Generates a short case id like `<yyyy><mm><dd>-0123456789`.
+  /// Generates a short case id like `<yyyy><mm><dd>I0123456789`.
   static String generateCaseId({
     DateTime? now,
   }) {
     now ??= clock.now();
     return '${now.toIso8601String().split('T').first.replaceAll('-', '')}'
-        '-'
+        'I'
         '${createUuid().split('-').join('').substring(0, 10)}';
   }
 

pkg/pub_integration/test/report_test.dart

@@ -11,7 +11,7 @@ import 'package:pub_integration/src/pub_puppeteer_helpers.dart';
 import 'package:pub_integration/src/test_browser.dart';
 import 'package:test/test.dart';
 
-final _caseIdExpr = RegExp(r'[0-9]{8}-[0-9a-f]{10}');
+final _caseIdExpr = RegExp(r'[0-9]{8}I[0-9a-f]{10}');
 
 void main() {
   group('report', () {