[MC-124447] Modifying maxCommandChainLength inside of function or command blocks does not affect currently running chain

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

Download the attached file MC-124447 datapack.zip and place it in the datapacks folder of your world
Set the maxCommandChainLength value to 2
```
/gamerule maxCommandChainLength 2
```
Use the following command
```
/function custom:modify_max_chain_length
```
→ It executes only one command
Run the function again
→ Now it executes both commands