Infinite recursion for template loaders that query the database

[tcarobruce]

A template loader that does a database query can cause the debug toolbar to enter an infinite recursive loop. (Eventually hits max recursion depth.) E.g.

def load_template_source(template_name, template_dirs=None):
    return DatabaseTemplate.objects.get(filename=template_name).source

Not an issue with an earlier version (0.7.0) of the toolbar.

Disabling the SQL panel also addresses the problem.

[aaugustin]

Can you provide the stack trace until the point where it enters a loop?

[tcarobruce]

Here's a gist with the stack trace: https://gist.github.com/tcarobruce/219c24cf288b3ccbe550

The template loader executes a query which is picked up by _record in panels.sql.tracking.NormalCursorWrapper, which issues a call to get_template_info (which begins the recursion anew).