map_upsert always overwrites value in the map

[Tetralux]

• Odin version: ef3d51f, Windows x64.

package main

import "core:fmt"

main :: proc() {
        m: map[string][dynamic]int

        _, array_ptr, found := map_upsert(&m, "hello", nil)
        fmt.println(m, found, array_ptr) // map[hello=[]] false &[]
        append(array_ptr, 1)

        _, array_ptr, found = map_upsert(&m, "hello", nil)
        fmt.println(m, found, array_ptr) // map[hello=[]] true &[] (!!!!!!)
}

The second println should be map[hello=[1]] true &[1].

[Tetralux]

The rationale here is for continuously accessing a key in a map and updating the value, based on the old value, inserting it if it wasn't there.

value_ptr := map_upsert(&m, key)
append(value_ptr, something)