Relative teleports (tp ^ ^ ^, tp ~ ~ ~) works only once in datapack

as an example:

tp @s ^ ^ ^1 <---- works fine
tp @s ^ ^ ^1 <---- doesn't work
tp @s ^ ^ ^1 <---- doesn't work

this inluce using tp in recursive funcion calls.

I attached a simple mc function to demonstrate it, and the ss of the result (white color means where is it to be expected and red is actual position). 

This bug was not in version 1.16.2, however in version 21w20a this report (MC-226206) says about similar problem relative to command block.