Fix comparison function for ConditionType

The function should ensure strict weak ordering. According to the current one
 {1, 0} == {0, 1} and {0, 1} == {2, 1}
but
 {1, 0} < {2, 1}

It is not possible to construct a failing test as the outcome very much depends
on how the runtime types are laid out.

CHANGELOG.md

@@ -5,7 +5,7 @@
 * None.
 
 ### Fixed
-* <How do the end-user experience this issue? what was the impact?> ([#????](https://github.com/realm/realm-core/issues/????), since v?.?.?)
+* Having a query with a number of predicates ORed together may result in a crash on some platforms (strict weak ordering check failing on iphone) ([#8028](https://github.com/realm/realm-core/issues/8028), since v14.6.0)
 * None.
 
 ### Breaking changes

src/realm/query_engine.hpp

@@ -2268,7 +2268,7 @@ class OrNode : public ParentNode {
         std::type_index m_type;
         bool operator<(const ConditionType& other) const
         {
-            return this->m_col < other.m_col && this->m_type < other.m_type;
+            return (this->m_col == other.m_col) ? this->m_type < other.m_type : this->m_col < other.m_col;
         }
         bool operator!=(const ConditionType& other) const
         {