[BUG] Timezone is inserted in middle of range [9.7 (9.7-??-e90a8a69a)]

[Zaz]

When I set Org to include the timezone in the timestamp and schedule a
task for 17:00-18:00, the correct format appears in the autocompletion,
"17:00-18:00 EST"; but when I press enter, the timezone is inserted in
the middle: "17:00 EST-18:00", which is not parsed correctly by Org agenda.

------------------------------------------------------------------------


Minimal Doom configuration:

`init.el`:

```
(doom! :lang
       org)
```

`config.el`:

```
(after! org
        (setq org-time-stamp-formats '("<%Y-%m-%d %a>" . "<%Y-%m-%d %a
%H:%M %Z>")))
```



Emacs  : GNU Emacs 29.1
Package: Org mode version 9.7 (9.7-??-e90a8a69a)