What is the environment (Minikube, Openshift)?

Kubernetes 1.22

What is the SBO version used?

1.1.1

What are the steps to reproduce this issue?

1. apply servicebinding with typo (with application or backing service which is not exist)
2. delete servicebinding

What is the expected behaviour?

delete servicebinding immediately

What is the actual behaviour?

at first, servicebinding ready condition changes to true (ApplicationBound - true), and is not deleted immediately
and then after seconds, finally it deleted

Service Binding Operator Logs

{"level":"info","ts":1662349375.74745,"logger":"controllers.ServiceBinding","msg":"Deleted, unbind the application","serviceBinding":"smlee/kafka-tomcat-binding3"}
{"level":"error","ts":1662349376.156951,"logger":"controller.servicebinding","msg":"Reconciler error","reconciler group":"binding.operators.coreos.com","reconciler kind":"ServiceBinding","name":"kafka-tomcat-binding3","namespace":"smlee","error":"Operation cannot be fulfilled on servicebindings.binding.operators.coreos.com "kafka-tomcat-binding3": the object has been modified; please apply your changes to the latest version and try again","stacktrace":"sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:266\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2\n\t/workspace/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:227"}

{"level":"info","ts":1662349405.0006185,"logger":"controllers.ServiceBinding","msg":"Deleted, unbind the application","serviceBinding":"smlee/kafka-tomcat-binding3"}
{"level":"info","ts":1662349405.0432987,"logger":"controllers.ServiceBinding","msg":"Done","serviceBinding":"smlee/kafka-tomcat-binding3","retry":false,"error":null}
{"level":"info","ts":1662349405.0434263,"logger":"controllers.ServiceBinding","msg":"ServiceBinding resource not found. Ignoring since object must be deleted","serviceBinding":"smlee/kafka-tomcat-binding3","name":{"namespace":"smlee","name":"kafka-tomcat-binding3"},"err":"ServiceBinding.binding.operators.coreos.com "kafka-tomcat-binding3" not found"}

Additional Information (Screenshots, etc)

at first, it shows like this after applying servicebinding with typo

with describe command,

and then when I delete this servicebinding resource, it changes like this

with describe command,

why these happens? I thought it would removed directly after use delete command but it takes time with error log, with applicationBound - true status.