lockAdvisoryAlice+AliceBob.pu: simplified concurrent access states

doc/diagram/lockAdvisoryAlice+AliceBob.pu

@@ -40,54 +40,21 @@ form -> Bob: form
 Bob -> Bob: edit (first change)
 Bob -> dirty: action=lock
 dirty -> Bob: status=**conflict_allow_force**,\nmessage=Record locked by user Alice
-note right: User Bob can edit and save
-Bob -> save: Post form
-save -> dirty: lock valid?
-dirty -> save: no
-save -> save: store 'tokenForce=<uniqid>' in lock
-save -> Bob: status=**conflict_allow_force**,\nmessage=Record locked by user Alice,\ntokenForce=<uniqid>
-Bob -> Bob: UI question 'continue?'
-
-alt Bob: force save
-   Bob -> save: Post form, GET Parameter 'tokenForce=<uniqid>'
-   save -> save: uniqId valid?
-     alt yes
-       save -> save: save form
-       save -> Bob: status=**succes**,redirect=client
-     else no
-       save -> Bob: status=**conflict_allow_force**,\nmessage=Record locked by user Alice,\ntokenForce=<uniqid>
-       save -> save: store 'tokenForce=<uniqid>' in lock
-       note over save: old <uniqid> will be overwritten
-     end
-else Bob: cancel save
-   Bob -> Bob: none
-end
-
-note over save: no release: Bob does not own the lock
-
+note right: User Bob can decide between a) reload and b) overwrite.
 ...
-Alice -> save: POST form
-save -> dirty: lock valid? yes!
-dirty -> dirty: record modified since lock?
-alt yes
-   save -> Alice: status=**conflict_allow_force**,\nmessage=Record has been modified,\ntokenForce=<uniqid>
-   ...
-   Alice -> save: POST form, GET Parameter 'tokenForce=<uniqid>'
-   save -> save: uniqId valid?
-     alt yes
-       save -> save: save form
-       save -> dirty: action=release
-       save -> Alice: status=**succes**,redirect=client
-     else no
-       save -> Alice: status=**conflict_allow_force**,\nmessage=Record locked,\ntokenForce=<uniqid>
-       save -> save: store 'tokenForce=<uniqid>' in lock
-       note over save: old <uniqid> will be overwritten
-     end
-else
+alt Bob: overwrite
+   Bob -> Bob: can edit and receive no more warnings
+   Bob -> save: Post form
+   save -> dirty: lock type 'Advisory'? yes >> always allow write.
    save -> save: save form
    save -> dirty: action=release
    deactivate dirty
-   save -> Alice: status=succes,redirect=client
+   save -> Bob: status=succes,redirect=client
+else Bob: reload
+   Bob -> Bob: reload page
 end
 
+Alice -> save: Post form
+save -> dirty: record modified. Message: Reload form.
+
 @enduml
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