Issue with flutter_intl while using same key in parent and child package?

Question

So we are using a key let say paidTo in the parent app and then we developed another child package which is having same key in intl.arb but it has placeholder as well,

Sample String from .arb file of the PARENT APP,

"paidTo": "Paid to ",

Sample string from .arb file of the CHILD PACKAGE,

"paidTo" : "Paid to {payeeName}",
  "@paidTo" : {
    "placeholders": {
      "payeeName" : {
        "type" : "String",
        "example" : "John"
      }
    }
  }

This is the exact error,

Closure call with mismatched arguments: function 'MessageLookupByLibrary.simpleMessage.<anonymous closure>'
Receiver: Closure: () => String
Tried calling: MessageLookupByLibrary.simpleMessage.<anonymous closure>("payeeName")
Found: MessageLookupByLibrary.simpleMessage.<anonymous closure>() => String

and stack trace of this is:

When the exception was thrown, this was the stack: 
#0      Object.noSuchMethod (dart:core-patch/object_patch.dart:38:5)
#1      _objectNoSuchMethod (dart:core-patch/object_patch.dart:85:9)
#2      Function._apply (dart:core-patch/function_patch.dart:11:73)
#3      Function.apply (dart:core-patch/function_patch.dart:34:12)
#4      MessageLookupByLibrary.evaluateMessage (package:intl/message_lookup_by_library.dart:123:21)
#5      MessageLookupByLibrary.lookupMessage (package:intl/message_lookup_by_library.dart:117:14)
#6      CompositeMessageLookup.lookupMessage (package:intl/message_lookup_by_library.dart:53:21)
#7      Intl._lookupMessage (package:intl/intl.dart:180:10)
#8      Intl._message (package:intl/intl.dart:174:12)
#9      Intl.message (package:intl/intl.dart:168:7)

Flutter doctor:

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