year column type does not round-trip when column value is 0

[druvv]

MySQL behavior:

mysql> create table t (pk int primary key, col1 year);
Query OK, 0 rows affected (0.02 sec)

mysql> insert into t values (1, 0);
Query OK, 1 row affected (0.02 sec)

mysql> select * from t;
+----+------+
| pk | col1 |
+----+------+
|  1 | 0000 |
+----+------+
1 row in set (0.01 sec)

Dolt:

# Welcome to the DoltSQL shell.
# Statements must be terminated with ';'.
# "exit" or "quit" (or Ctrl-D) to exit.
new_format> create table t (pk int primary key, col1 year);
new_format> insert into t values (1, 0);
Query OK, 1 row affected (0.00 sec)
new_format>  select * from t;
+----+------+
| pk | col1 |
+----+------+
| 1  | 2048 |
+----+------+
1 row in set (0.01 sec)

The 2048 value is confusing.

[druvv]

Found this while adding tests for a previous table import bug where truncated column values were causing panics

[druvv]

MySQL displays YEAR values in YYYY format, with a range of 1901 to 2155, and 0000.

Will fix.

[druvv]

Fixed in dolthub/go-mysql-server#1395