Add support for Inline Entity Form (D7)

in your patch, content_lock_inline_entity_form_form_alter() calls _content_lock_is_lockable_node() with a node which is not guaranteed to have a nid, which can cause an undefined unless you have added the patch #2682781: In content_lock_content_lock_node_lockable(), do not assume the node has a nid (PHP Undefined property: stdClass::$nid in content_lock.module on line 984).

Nice patch, here is a new version with a few changes:

(1) the patch adds ./content_lock/modules/content_lock_inline_entity_form to ./content_lock, so we end up with ./content_lock/content_lock/modules/content_lock_inline_entity_form if we apply the patch

(2) I think version information is added by the Drupal packaging system, so it should not be added to new modules in a project.

(3) As stated in the previous comment, until #2682781: In content_lock_content_lock_node_lockable(), do not assume the node has a nid (PHP Undefined property: stdClass::$nid in content_lock.module on line 984) makes it in, we need to avoid calling _content_lock_is_lockable_node() with a node which does not have a nid.

Happy to see it in next release

Please try to remember to set the issue status to "needs review" when you upload a patch. Thanks.