Pairs application deselects the second equivalent when a new pairs is started

[Karvjorm]

Here is some bug in the Pairs game when you have selected two selections with three keys (1, 2, 3). The other picture shows the start and the end of error state. In the start you will select the question mark below the right clock as a second of the pair. Then state is just like in other picture where two equal "keys" pictures are shown. But when you start a new pairs selection, the latest selection (picture below the right clock) disappears and state is exactly the same when it was in the first picture. It does not matter what other question mark you select to start a new pairs selection. All six selections left will get the latest selection below the right clock to disappear.

BTW, I do not find Pairs as a component below. Is it a 3party application?

[Karvjorm]

The start and end of the error state

[Karvjorm]

Two "keys" selections are selected but the next click undo the latest selection

[Karvjorm]

Here are other keys. No problem to catch them with the screenshot.

[Karvjorm]

Here is a gameover picture. One question mark is left.

[scottmc]

This is a duplicate of #4397.

[axeld]

Don't forget to set the "blocked by" property when setting a duplicate.