My pool renovation was completed recently in Sedona, AZ - the plaster was poured in March, 2023 and the coping and bond beam (no rebar used) were replaced in January, 2023. I have already noticed at least 10 hairline cracks in the coping (see a few photos attached as examples). The guy who did the work told me this is normal. Would appreciate feedback on this issue and whether others believe this is "normal."