Remove last continuation from pendingDecisions when cancelled

Author: sunkup

lib/src/main/java/at/bitfire/cert4android/UserDecisionRegistry.kt

@@ -53,11 +53,17 @@ class UserDecisionRegistry private constructor(
             // User decision possible → remember request in pendingDecisions so that a later decision will be applied to this request
 
             cont.invokeOnCancellation {
+                val decisionsList = pendingDecisions[cert]
+
                 // remove from pending decisions on cancellation
                 synchronized(pendingDecisions) {
-                    pendingDecisions[cert]?.remove(cont)
+                    decisionsList?.remove(cont)
                 }
 
+                // Remove decisions list if empty
+                if (decisionsList?.isEmpty() == true)
+                    pendingDecisions.remove(cert)
+
                 val nm = NotificationUtils.createChannels(context)
                 nm.cancel(CertUtils.getTag(cert), NotificationUtils.ID_CERT_DECISION)
             }