Don't copy cache-long on build.

API/API.csproj

@@ -115,6 +115,7 @@
     <None Remove="Hangfire-log.db" />
     <None Remove="obj\**" />
     <None Remove="cache\**" />
+    <None Remove="cache-long\**" />
     <None Remove="backups\**" />
     <None Remove="logs\**" />
     <None Remove="temp\**" />

API/Services/CacheService.cs

@@ -186,6 +186,7 @@ public class CacheService : ICacheService
                 }
                 else
                 {
+                    // Potential BUG: If the folder is left here and there are no files within, this could theoretically return without proper cache
                     return chapter;
                 }
             }