public UriBasedIdentifierSet(UriBasedIdentifierSet other, IEqualityComparer <UriBasedIdentifier> comparer = null, bool isReadOnly = false)
: base(isReadOnly: isReadOnly)
{
other.EnsureNotNull(nameof(other));
//
_underlyingSet = new HashSet <UriBasedIdentifier>(collection: other, comparer: comparer ?? other._underlyingSet.Comparer);
}
