i3 fails when intarray is installed

[NikolayS]

test=# create extension intarray
test-# ;
CREATE EXTENSION
test=# :dba
Menu:
   0 – Node & Current DB Information: master/replica, lag, DB size, tmp files, etc
   1 – Databases: Size, Statistics
   2 – Table Sizes
   3 – Load Profile
  a1 – Current Activity: count of current connections grouped by database, user name, state
  b1 – Tables Bloat, rough estimation
  b2 – B-tree Indexes Bloat, rough estimation
  b3 – Tables Bloat, more precise (requires pgstattuple extension; expensive)
  b4 – B-tree Indexes Bloat, more precise (requires pgstattuple extension; expensive)
  b5 – Tables and Columns Without Stats (so bloat cannot be estimated)
  i1 – Unused/Rarely Used Indexes
  i2 – Unused/Redundant Indexes Do & Undo Migration DDL
  i3 – FKs with Missing/Bad Indexes
  p1 – [EXPERIMENTAL] Alignment Padding. How many bytes can be saved if columns are ordered better?
  s1 – Slowest Queries, by Total Time (requires pg_stat_statements extension)
  s2 – Slowest Queries Report (requires pg_stat_statements)
  t1 – Postgres parameters tuning
  v1 – Vacuum: Current Activity
   x – Turn Wide Mode ON (currently OFF): show more details, more columns
   q – Quit

Type your choice and press <Enter>:
i3
psql:/home/nikolay/postgres_dba/sql/i3_non_indexed_fks.sql:125: ERROR:  operator is not unique: smallint[] @> smallint[]
LINE 60: ...(indkey::int2[])[0:(array_length(key_cols,1) -1)] @> key_col...
                                                              ^
HINT:  Could not choose a best candidate operator. You might need to add explicit type casts.
Press <Enter> to continue…