g_form.clearValue not working correctly

[caoh]

We have a catalog item. In its on‑submit client script, we clear the value of one variable on the request form when a certain condition is met, using the statement: `g_form.clearValue('var1');

` Note: This variable is of type **Lookup Select Box**, and the *Include none* option is unchecked.

This logic worked correctly and cleared the variable value for several years. After applying the patch `glide‑zurich‑07‑01‑2025__patch9‑hotfix1`, the value can no longer be cleared by this process.

※ Before applying this patch, the value of this variable obtained from *Get Catalog Variables* in the flow was empty.

※ After applying the patch, the value obtained from *Get Catalog Variables* within the flow is no longer empty.

Is this behavior caused by a specification change in the Zurich release, or is it a bug?