wl_text_input: initializes input_method's context when destroy context.

Summary: input_method's context set to NULL when context is freed.

Test Plan: N/A

Reviewers: zmike, devilhorns

Reviewed By: devilhorns

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D3015

src/modules/wl_text_input/e_mod_main.c

@@ -414,6 +414,10 @@ _e_text_input_method_context_cb_resource_destroy(struct wl_resource *resource)
    if (context->kbd.resource)
      wl_resource_destroy(context->kbd.resource);
 
+   if ((context->input_method) &&
+       (context->input_method->context == context))
+     context->input_method->context = NULL;
+
    free(context);
 }