mold: miscompilation for rust target i686-unknown-linux-musl

Mold v1.0.3 miscompiles call targets constructed from this sample program:

pub fn main() {
    unsafe {
        let x: usize = 0x12340000;
        let f: extern "C" fn() = std::mem::transmute(x);
        f();
    }
}

According to all the documents I could find, this should not be UB in Rust, but a valid way to create a function call from a known address.

call 0x12340000   ; expected call

call 0x1233ffff   ; actual call

In the image, the image-base option is not needed to reproduce the issue. I just wanted to show the instruction encoding differences between lld and mold from the same source EIP address.