Can't load common_schema

Loading common_schema version 2.2 results in error:

ERROR 1644 (91100) at line 12146: QueryScript error: [Unsupported token: "sta"] at 5: "try {
set @common_schema_percona_server_expected := @common_schema_percon

This looks like a bug in SELECT INTO queries. I have pinpointed it to query at line 6063:

SELECT level, token, state FROM _sql_tokens WHERE id = id_from INTO statement_level, first_token, first_state;

This query returns normally:
0 \n whitespace

but the variables get values as if the query returned:
0 sta white