Should the RTC battery have a series resistance, and what is the appropriate resistance value?

The resistance value of the resistor in series on the RTC power supply has been debated on the Internet. Some people say 0 R, some people say various resistance values such as 1K, 10K, etc., but there is basically nothing that can be explained clearly in theory.
First we need to understand the purpose of this resistor: current limiting. Referring to the disposable button batteries of various manufacturers, take the CR2025 of Sunpower as an example. Similar to other brands, the manufacturer requires that the battery is not allowed to short-circuit under any circumstances, otherwise it may burst or explode. Therefore, in the event of a post-stage short circuit, the current limiting resistor must limit the current within the maximum continuous discharge current, and the running product will not work possibly, but the product is not allowed to catch fire or even explode.