Cannot save `rainloop.user` Sieve script containing `vacation` actions

[tkasch]

Describe the bug It is not possible to store a Sieve script containing a vacation action on our IMAP server via the simple/GUI editor.

To Reproduce Steps to reproduce the behavior:

1. Open existing rainloop.user script
2. Click on Add a Filter and create a vacation filter similar to the one shown in the first screenshot below
3. Click on 'Done'
4. In the Edit Script window, click on Save
5. Nothing happens, no error message appears and no clue can be found in SnappyMail's logs or in Apache and PHP logs
6. Closing the window via the X button and clicking on rainloop.user again gives me a spinning busy indicator in the Save button as shown in the 2nd screenshot below. Clicking on the button does not seem to have any effect.
7. Closing, reopening the user settings, and reloading the rainloop.user script shows the script unmodified as it was in step 1
8. It is possible to successfully save rainloop.user when adding a moveto action instead of vacation. But if I had an unsuccessful attempt saving a vacation filter in the same SnappyMail session, I have to log out and in again to make saving a script work again.

Expected behavior It should be possible to successfully save the rainloop.user script containing vacation actions.

Screenshots

Desktop (please complete the following information):

• Browser Firefox 98.0 on Ubuntu 20.04
• SnappyMail master-branch as of 2022-05-18
• IMAP-Server: Cyrus 3.0.13 as shipped with Ubuntu 20.04

[perler]

so, is this closed or a bug? I experience the same when creating a simple forward in rainloop.user. (I use cloudron, which uses this git repo as far as I know)

[tkasch]

As of SnappyMail 2.16.3, storing a vacation rule works for me as expected...