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"data-is" attribute is being removed if you mount on the same element since v3.4.1 #2317
Since v3.4.1 if you mount a new tag on the same element that other tag is mounted since the
When you click on the tag1 button it mounts just fine (you see the red background), then you click the tag2 button and it mounts but the background (it should be blue) is missing since the
If you comment out line 12 (v3.4.1) and uncomment line 14 (v3.4.0) you will see that it works.
I think that we need to add back the check for
Chrome/MacOS but it's not browser/os related.