Bug in REPLACE/REPLACING directives with multiple operations

[fm-117]

Describe the bug According to some results with IBM compiler, when a token is replaced by one replace operation, other following operations of the same directive should not be considered for this token (i.e. a word can be replaced zero or one time at most).

To Reproduce (Type)Cobol code that cause the bug : (if any)

       IDENTIFICATION DIVISION.
       PROGRAM-ID. MyPgm.
       data division.
       working-storage section.
       01 group1.
       REPLACE ==(01)== BY ==(01)==
                      == 01 == BY == 05 ==.
       01 var1 PIC X(01).
       END PROGRAM MyPgm.

On IBM compiler the resulting var1 has a X(01) picture definition, however our parser will have a X(05) picture definition. This test is already in our code, see PgmCopyReplacing.cbl

Expected behavior The second replace operation should have no effect on the picture string.

• check Cobol specs to explain this behavior
• check for every 4 types of replace operations
  • for example test CopyReplace4Colon seems to contradict this behavior...