Force reset size_current to 0 after rotate

src/alert-unified-alert.c

@@ -111,6 +111,7 @@ int AlertUnifiedAlertCloseFile(ThreadVars *t, AlertUnifiedAlertThread *aun) {
             aun->file_ctx->filename = NULL;
         }
     }
+    aun->size_current = 0;
 
     return 0;
 }

src/alert-unified-log.c

@@ -115,6 +115,7 @@ int AlertUnifiedLogCloseFile(ThreadVars *t, AlertUnifiedLogThread *aun) {
             aun->file_ctx->filename = NULL;
         }
     }
+    aun->size_current = 0;
     return 0;
 }
 

src/alert-unified2-alert.c

@@ -140,6 +140,7 @@ int Unified2AlertCloseFile(ThreadVars *t, Unified2AlertThread *aun) {
             aun->file_ctx->filename = NULL;
         }
     }
+    aun->size_current = 0;
 
     return 0;
 }