[Webkit-unassigned] [Bug 212216] New: REGRESSION(r261922): [GTK][WPE] imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/update-the-source-set.html is failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=212216

            Bug ID: 212216
           Summary: REGRESSION(r261922): [GTK][WPE]
                    imported/w3c/web-platform-tests/html/semantics/embedde
                    d-content/the-img-element/update-the-source-set.html
                    is failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

The test started failing in the range r261922-r261929. I bisected the range and the regression started happening in r261922.

Diff: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r261992%20(13799)/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/update-the-source-set-diff.txt

--- /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/update-the-source-set-expected.txt
+++ /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/update-the-source-set-actual.txt
@@ -61,9 +61,9 @@
 PASS <picture><source srcset="data:,b" type="text/html"><img src="data:,a" data-expect="data:,a"></picture>
 PASS <picture><source srcset="data:,b" type="text/plain"><img src="data:,a" data-expect="data:,a"></picture>
 PASS <picture><source srcset="data:,b" type="text/css"><img src="data:,a" data-expect="data:,a"></picture>
-PASS <picture><source srcset="data:,b" type="video/mp4"><img src="data:,a" data-expect="data:,a"></picture>
-PASS <picture><source srcset="data:,b" type="video/ogg"><img src="data:,a" data-expect="data:,a"></picture>
-PASS <picture><source srcset="data:,b" type="video/webm"><img src="data:,a" data-expect="data:,a"></picture>
+FAIL <picture><source srcset="data:,b" type="video/mp4"><img src="data:,a" data-expect="data:,a"></picture> assert_equals: expected "data:,a" but got "data:,b"
+FAIL <picture><source srcset="data:,b" type="video/ogg"><img src="data:,a" data-expect="data:,a"></picture> assert_equals: expected "data:,a" but got "data:,b"
+FAIL <picture><source srcset="data:,b" type="video/webm"><img src="data:,a" data-expect="data:,a"></picture> assert_equals: expected "data:,a" but got "data:,b"
 PASS <picture><source srcset="data:,b" type="unknown/unknown"><img src="data:,a" data-expect="data:,a"></picture>
 PASS <picture><source srcset="data:,b" type="application/octet-stream"><img src="data:,a" data-expect="data:,a"></picture>
 PASS <picture><source srcset="data:,b" type="application/x-shockwave-flash"><img src="data:,a" data-expect="data:,a"></picture>

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