Utility copy constraint changes. [SyncWith:crypto3-zk#307] #208

All 73 tests pass in 1m 14s

  30 files ±  0   30 suites ±0 1m 14s ⏱️ +3s
  73 tests +  6   73 ✔️ +  6 0 💤 ±0 0 ❌ ±0
156 runs +12 156 ✔️ +12 0 💤 ±0 0 ❌ ±0

Results for commit 877b3ee. ± Comparison against earlier commit 1ecb53c.