Creating new profile field with weight that another field already has causes crash

But you can edit the field and set the weight to a value that another field already has, and other field weights are adjusted appropriately upon saving.

Here's the error when creating:

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -2
[message] => DB Error: syntax error
[mode] => 16
[debug_info] => Object [nativecode=1064 ** You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'Object' at line 1]
[type] => db_error
[user_info] => Object [nativecode=1064 ** You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'Object' at line 1]
[to_string] => [db_error: message="DB Error: syntax error" code=-2 mode=callback callback=CRM_Core_Error::handle prefix="" info="Object [nativecode=1064 ** You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'Object' at line 1]"]
)