[MC-136626] Using wildcard selector * in scoreboard operation creates entries for all tracked entities with scores

When using the wildcard selector * in scoreboard operation, the scoreboard is filled with entries with score 0 for all tracked entities with scores.

Steps to reproduce:

Create scoreboards

/scoreboard objectives add board1 dummy
/scoreboard objectives add board2 dummy

Fill in some scores

/scoreboard players set player1 board1 10
/scoreboard players set player2 board2 3
/scoreboard players set player3 board2 5

Tracked entities should show 3 entries
```
/scoreboard players list
```

Scoreboard board2 should have only 2 entries for player2 and player3
```
/scoreboard objectives setdisplay sidebar board2
```

Use wildcard, and set score of player2 to max

/scoreboard players operation player2 board2 > * board2

Score of player2 is set to max but the scoreboard board2 has now an extra entry for player1 with score 0
```
player2 5
player3 5
player1 0
```

Comments 1

sof 2024-09-27T12:34:19Z

Doing this in 24w39a, player1 didn't have an entry on the displayed scoreboard. However, doing the following command showed that player1's value was set to 0 when it should say 'Can't get value of board2 for player1; none is set'.

/scoreboard players get player1 board2