Adding Inventory Stock Does Not Re-Enable Product When Tracking is Enabled

We are setting up a client's site and he wants to track his inventory with nopCommerce.  When testing with purchases, the inventory dropped below the level where the software will take action: unpublish or disable the buy button.  That works well.  

But, when inventory is added to bring levels above the minimum, the product remains in its unavailable state.

If it has been set to unpublish it will not automatically publish.  In fact, it seems you have to check the publish box on both the product detail and product variant pages to re-activate the product.

If it has been set to disable the buy button, when inventory is added and levels are above the minimum, the buy button stays invisible and now the product is rendered totally unpurchasable.

Don't know if I'm doing something incorrect or if this is a bug.

Thanks in advance for any help!

Sorry to bring this old topic up. But the issue is still happening in ver 3.9 Particularly for disabled buy button, there is no way to re-enable the button which makes the product totally un-purchasable.