CompositeExpression is mutable

[morozov]

Q	A
BC Break	no
Version	2.10.1

If a composite expression is used in different parts of the same query or in different queries, its implicit mutation by the QueryBuilder::(and|or)(Where|Having)() methods in one place will affect the other places as well.

Before:

$expr->add('u.group_id = 2');

After:

$expr = $expr->with('u.group_id = 2');

[BenMorel]

Fixed in #3858.

[BenMorel]

@morozov Is there anything preventing this issue from being closed?

[morozov]

I usually rely on GitHub to close issues automatically.