[SHELL32] File Types: Delete action does not work

reactos-bootcd-0.4.16-dev-127-g478a903-x86-gcc-lin-dbg

• Open File Types
• Add a new action named "test" on .zip

• Delete action
• It's indeed removed from the GUI

• Click OK and re-open
• "test" action is still present
• Code of interest : EditTypeDlg_OnRemove in dll/win32/shell32/dialogs/filetypes.cpp : https://git.reactos.org/?p=reactos.git;a=blob;f=dll/win32/shell32/dialogs/filetypes.cpp#l1411