Added defensive logic to File Indexer for scenarios where file does not exist on disk. Added ability to reset the search index prior to reindexing.

Oqtane.Server/Infrastructure/Jobs/SearchIndexJob.cs

@@ -59,6 +59,13 @@ namespace Oqtane.Infrastructure
                 var currentTime = DateTime.UtcNow;
                 var lastIndexedOn = Convert.ToDateTime(siteSettings.GetValue(SearchLastIndexedOnSetting, DateTime.MinValue.ToString()));
 
+                if (lastIndexedOn == DateTime.MinValue)
+                {
+                    // reset index
+                    log += $"*Site Index Reset*<br />";
+                    await searchService.DeleteSearchContentsAsync(site.SiteId);
+                }
+
                 var ignorePages = siteSettings.GetValue(SearchIgnorePagesSetting, "").Split(',');
                 var ignoreEntities = siteSettings.GetValue(SearchIgnoreEntitiesSetting, "").Split(',');