QA output created by 142
Create the original file blocks
f4820540fc0ac02750739896fe028d56  TEST_DIR/test-142/file1
Create the reflink copies
Rewrite the copies
Examine original file
f4820540fc0ac02750739896fe028d56  TEST_DIR/test-142/file1
eb34153e9ed1e774db28cbbe4090a449  TEST_DIR/test-142/file2