DodoApp: Fix app uninstall

Change-Id: I17c28bbd88dde9c064a31388411ebf40cffdea31
diff --git a/core/installer/app_manager.go b/core/installer/app_manager.go
index 4ed21f4..8bb072e 100644
--- a/core/installer/app_manager.go
+++ b/core/installer/app_manager.go
@@ -692,10 +692,12 @@
 		}
 		cfg = renderedCfg
 		r.RemoveAll(instanceDir)
-		prev := ""
 		curr := instanceDir
-		for prev != curr {
+		for {
 			p := filepath.Dir(curr)
+			if p == curr {
+				break
+			}
 			n := filepath.Base(curr)
 			kustPath := filepath.Join(p, "kustomization.yaml")
 			kust, err := soft.ReadKustomization(r, kustPath)
@@ -703,7 +705,7 @@
 				return "", err
 			}
 			kust.RemoveResources(n)
-			if len(kust.Resources) > 0 {
+			if len(kust.Resources) > 0 || p == m.appDirRoot {
 				soft.WriteYaml(r, kustPath, kust)
 				break
 			} else {
@@ -711,7 +713,6 @@
 					return "", err
 				}
 			}
-			prev = curr
 			curr = p
 		}
 		return fmt.Sprintf("uninstall: %s", instanceId), nil