Modifying maxCommandChainLength inside of function or command blocks does not affect currently running chain

The bug

Modifying the maxCommandChainLength gamerule value inside a function or command block does not affect the currently running chain.

How to reproduce

1. Download the attached file

1. and place it in the datapacks folder of your world

2. Set the maxCommandChainLength value to 2

   /gamerule maxCommandChainLength 2

3. Use the following command

   /function custom:modify_max_chain_length

   → ❌ It executes only one command

4. Run the function again
   → ✔ Now it executes both commands