Until this issue is resolved by the manufacturers, you can force the direction of charge (but you will not be able to use any USB-C fast charging protocols) by using a USB-C to female USB-A adapter and plugging the USB-C end of the adapter into the device that you want to supply the power.
Click on this text for details about an Adapter available from AmazonUS:
Then use a cable plugged into the USB-A end of the adapter whose other end has the correct type of connector for the device being charged and some cables include adapters which allow you to charge devices that have micro-USB, Apple Lightning, or USB-C ports.
Click on this text for details about a Cable available from AmazonUS:
The adapter and cable can also be used to charge flashlights that have USB-C ports, but do not adhere to the USB standard and cannot be charged using a normal USB-C to USB-C cable, but even with the adapter and cable there will still be some instances where flashlights which do not adhere to the USB standard cannot be used as a power source to charge certain devices, so be sure to test your particular desired implementations.