postgis_restore from 3.0: ERROR: function "pgis_geometry_union_finalfn" already exists with same argument types

[strk]

regress/run_test.pl --dumprestore --upgrade-path unpackaged3.0--:auto regress/core/regress -v
Restoring database 'postgis_reg' using postgis_restore.pl
Converting /tmp/pgis_reg/postgis_reg.dump to ASCII on stdout...
  Reading list of functions to ignore...
  Writing manifest of things to read from dump file...
Setting postgis schema to public, as found in the dump  Writing ASCII to stdout...
Done.
 failed (Could not restore postgis_reg: /tmp/pgis_reg/regress_log)
-----------------------------------------------------------------------------
NOTICE:  schema "public" already exists, skipping
NOTICE:  schema "public" already exists, skipping
NOTICE:  schema "public" already exists, skipping
SET
ALTER TABLE
ALTER TABLE
SELECT 8500
DELETE 8500
SET
SET
SET
SET
SET
 set_config 
------------
 
(1 row)

SET
SET
SET
SET
ERROR:  function "pgis_geometry_union_finalfn" already exists with same argument types
-----------------------------------------------------------------------------
Died at regress/run_test.pl line 440.

[Sandro Santilli <strk@…>]

In d9a7a30e/git:

Handle deprecated functions in create_skip_signature

References #5574 #5575 in master branch (3.5.0dev)

[Sandro Santilli <strk@…>]

In 2c36d0c/git:

Handle deprecated functions in create_skip_signature

Closes #5574 #5575 in stable-3.4 branch (3.4.1dev)