First time querying a server with `dolt_show_system_tables` enabled produces error

Repro:

1. Define `{"dolt_show_system_tables": 1}` in the sysvars section of `config.yaml`

```sh
$ grep system_variables config.yaml
system_variables: {"dolt_show_system_tables": 1}
```

2. Start the server:

```
$ dolt sql-server --config=config.yaml
Starting server with Config HP="127.0.0.1:3310"|T="28800000"|R="false"|L="debug"
INFO[0000] Server ready. Accepting connections.
```

3. Connect a client and run show tables:

```
$ mysql -h localhost -P 3310 -u root
WARNING: option --ssl-verify-server-cert is disabled, because of an insecure passwordless login.
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 8.0.33 Dolt

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [(none)]> use config_blog;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
MySQL [config_blog]> show tables;
ERROR:
```

First time it errors.

Subsequent runs succeed.

```
MySQL [config_blog]> show tables;
+------------------------------+
| Tables_in_config_blog |
+------------------------------+
| dolt_branches |
| dolt_commit_ancestors |
| dolt_commit_diff_t |
| dolt_commits |
| dolt_conflicts |
| dolt_conflicts_t |
| dolt_constraint_violations |
| dolt_constraint_violations_t |
| dolt_diff_t |
| dolt_history_t |
| dolt_log |
| dolt_remote_branches |
| dolt_remotes |
| dolt_status |
| dolt_workspace_t |
| t |
+------------------------------+
16 rows in set (0.000 sec)
```

Error in the debug logs suggest this may be the culprit:

```
D=3 error="error querying table dolt_commit_diff_t: dolt_commit_diff_* tables must be filtered to a single 'to_commit'" query="SELECT * FROM `dolt_commit_diff_t` LIMIT 0;"
```

But that error is in every run of show tables.