https://github.com/JabRef/jabref/blob/913b46cf0c31a4f7f73c84e4a8584c9adb8c701f/src/main/java/org/jabref/gui/journals/UndoableUnabbreviator.java#L61 ```java if ((!StandardField.JOURNAL.equals(field) && !StandardField.JOURNALTITLE.equals(field)) || !entry.hasField(AMSField.FJOURNAL)) { ``` gets rewritten to ```java if ((!StandardField.JOURNAL != field && StandardField.JOURNALTITLE != field) || !entry.hasField(AMSField.FJOURNAL)) { ``` Which leads to a compile error ``` C:\git-repositories\jabref\src\main\java\org\jabref\gui\journals\UndoableUnabbreviator.java:61: Fehler: Ungültiger Operandentyp StandardField für unären Operator "!" if ((!StandardField.JOURNAL != field && StandardField.JOURNALTITLE != field) || !entry.hasField(AMSField.FJOURNAL)) { ^ ```
https://github.com/JabRef/jabref/blob/913b46cf0c31a4f7f73c84e4a8584c9adb8c701f/src/main/java/org/jabref/gui/journals/UndoableUnabbreviator.java#L61
gets rewritten to
Which leads to a compile error