High memory usage

Hello,
When I run
```julia
foreach(_->solve(:a + 1), 1:1e6)
```
or
```julia
foreach(_->(:a + 1), 1:1e6)
```

The RAM usage gets higher until all the memory of my laptop is used up
```
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
436545 user 20 0 1320336 440560 142848 R 66,7 2,8 4:01.32 julia
436592 user 20 0 6660304 5,7g 8776 S 40,7 38,1 2:15.18 reduce
```

I'm using Reduce v1.2.10 and Julia v1.5.3