Summary task won't move backwards when its predecessor becomes shorter

[higamma]

When a predecssor is deleted or shorten, activity start day is not change.
For example, activity b's predessor is activity a.
Activity a's start day: April 1st. end day: April 10th.
Activity b's start day: April 11th (a's end day). end day: 15th

Then activity a plan is shorten. The end day is 5th.
But, activty b's start day is not change.
This phenomenon is happened when activity a is deleted too.

And then, activity b is not able to change schedules.

[dbarashev]

Then activity a plan is shorten. The end day is 5th.
But, activty b's start day is not change.

You need to set "strong" dependency type in the dependency properties.

[higamma]

Thanks, for your reply.
Please see this video.
https://user-images.githubusercontent.com/166818/151723349-2c2e97a3-7fa2-4b61-ac57-315ee80ed64c.MOV
Environment: macOS12.1 macmini m1 2020

[dbarashev]

I see, it happens when the successor is a summary task. Thanks for reporting! As a workaround, you can draw dependencies to one of the child tasks (e.g. to test3 in your video)

[higamma]

dbarashev-san
Thank you, your work.
And I'm grad to help this project.

By the way, (sorry, I understand that I should not ask here) how do I edit holiday calendars?
I would like to add Japanese 2022 holiday calendar.

[dbarashev]

If you mean to edit holidays in a single project then Project > Properties > Project Calendar

[higamma]

I want to edit preset calendar.
And then, I would like to commit it for project.

[dbarashev]

The calendars are located in plugins/base/biz.ganttproject.app.localization/resources/calendars/ folder in your GanttProject installation. You need to edit i18n_ja_JP.calendar file. It is XML which can be edited in any text editor.

If you wish, you can make a pull request into this repository: https://github.com/bardsoftware/biz.ganttproject.app.localization

[higamma]

Thanks.
I made pull requests.