[Webkit-unassigned] [Bug 259741] New: REGRESSION - Multiple sequenced animations of the same property do not work

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=259741

            Bug ID: 259741
           Summary: REGRESSION - Multiple sequenced animations of the same
                    property do not work
           Product: WebKit
           Version: Safari 17
          Hardware: Other
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: xrox at o2.pl
                CC: dino at apple.com, graouts at apple.com

When adding two subsequent animations of the same property (in my case 'transform'), the first one is not behaving correctly (jumps a little and comes back to the starting position).
See codepen with minimal repro: https://codepen.io/wookie123/pen/zYMerWP (it should translate right, wait 1s and translate further)

It works as expected on Chrome and Safari 16.3.
It fails on Safari 17 on both MacOS (19616.1.24.11.3) and iOS (21A5291g).

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