strange behavior of 'as command' on M1 Mac

comment_single-quote.s

    mov x0, #1
LABEL1: # f
    mov x0, #2
LABEL2: # '
    mov x0, #3
LABEL3: # 'f
    mov x0, #4
LABEL4: # 'fo
    mov x0, #5
LABEL5: # 'foo
    mov x0, #6
    mov x0, #7

/*
$ objdump -d comment_single-quote.o

comment_single-quote.o: file format mach-o arm64


Disassembly of section __TEXT,__text:

0000000000000000 <ltmp0>:
       0: 20 00 80 d2   mov     x0, #1
       4: 40 00 80 d2   mov     x0, #2
       8: a0 00 80 d2   mov     x0, #5
       c: c0 00 80 d2   mov     x0, #6
      10: e0 00 80 d2   mov     x0, #7
*/