tellraw clickEvent run_command can be used infinitely many times

tellraw command when i press the button that runs the command

running the command ones
thought that the command can be run only ones

i can run the command any time i want
just press the runcommand button and this is it i will have like alot of diamond and stuff like that

Steps to Reproduce:
1. run this command in a commandblock

/tellraw @a {"text":"Do you want an apple? ", "extra": [{"text":"[OK]","color":"red","clickEvent": {"action":"run_command","value":"/give @p minecraft:apple"}, "hoverEvent":{"action":"show_text","value":"I really do"}}]}

2. press the red ok button in the chat more than one time

3. and with this you can get a free apples til you logout of the server and the chat willbe cleared ^_