execute store result ... run function inside of a function doesn't output correct result

The bug

Using execute store result to get the number of commands ran in a function always outputs 1 if ran inside of another function.

Setup

scoreboard objectives add my_objective dummy

scoreboard objectives setdisplay sidebar my_objective

Use attached datapack containing two functions:

my_function.mcfunction

say 1
say 2
say 3
say 4
say 5

test.mcfunction

execute store result score player my_objective run function store:my_function

How to reproduce

1. Run the following command in chat, notice score gets set to 1

/function store:test

2. Run this command in chat or in a command block, notice score gets set to the amount of commands ran

/execute store result score player my_objective run function store:my_function

Expected output

I expected the execute store result to behave the same way inside of a function as it does in chat or in a command block.

Actual output

The store gets set to 1 if the execute store command is inside of a function regardless of the amount of commands ran.