PHPLIB-205: Document UnsupportedException for collation

src/Operation/Distinct.php

@@ -91,6 +91,7 @@ class Distinct implements Executable
      * @param Server $server
      * @return mixed[]
      * @throws UnexpectedValueException if the command response was malformed
+     * @throws UnsupportedException if collation is used and unsupported
      */
     public function execute(Server $server)
     {

src/Operation/Find.php

@@ -184,6 +184,7 @@ class Find implements Executable
      * @see Executable::execute()
      * @param Server $server
      * @return Cursor
+     * @throws UnsupportedException if collation is used and unsupported
      */
     public function execute(Server $server)
     {

src/Operation/FindAndModify.php

@@ -142,6 +142,7 @@ class FindAndModify implements Executable
      * @param Server $server
      * @return object|null
      * @throws UnexpectedValueException if the command response was malformed
+     * @throws UnsupportedException if collation is used and unsupported
      */
     public function execute(Server $server)
     {