Xcode has several different editors to show the contents of plist files. One of them is the general plist editor, which displays key names without translation. The plist editor can also be in the specialized Info.plist mode, where it knows about the structure of this special type of plist file and translates the keys into English.
I donโt know how Xcode decides which editor to use, so the following just guesses: I assume that Xcode is looking at the selected target to check the path to the Info.plist file, and if it is an edited file, it uses a specialized editor. Therefore, if you have one goal selected, but open other Info.plist goals, it can use a common editor.
Xcode also manages file types for each file in the project. You can override Xcode's automatic guesses by opening the file options (click on the file in the form of a diagram and press the -I command). There may be a type file for identifying Info.plist files.
As a last resort, you can always open a file by right-clicking on it in the form of a diagram. In the context menu "Open as ..." you can choose how to open it. I usually use the "Source Code File" because I like to see the source XML.
source share