Linking does not work for games that contain certain characters

The linking window cannot reproduce some characters in game titles, as in the rest of the application (as expected). What is unexpected is that when trying to link, a second entry is created with a different title, based on the incorrectly-decoded name of the first one.

This example is what happens following an attempt at linking. The first entry is the entry that was created upon attempting to link with the second one. The character that should be decoded as an apostrophe (’) is in fact decoded (or at least encoded on the website) as â.

Similarly, / in an existing game title gets converted to -, and a new entry is created based on that substitution.

Start by reproducing the linking flow described in the issue with a game title containing a curly apostrophe and another containing /, then trace the linking window's title handling and the request sent to RetroAchievements.org. Done means linking reuses the existing game, preserves the title characters, and does not create a second entry from a mis-decoded or substituted name.