[Blink] Image is being duplicated/creates extra markup upon dnd

[Marek Lewandowski]

since: 4.3 until major

That option was reproduces under following circumstances:

Generate a package using online builder which includes standard preset, minus image plugin, plus image2 plugin.
Now open samples and check replacebycode sample.

1. drag and drop image up to 6 times

after that time you should experience some image duplication/extra markup injection (blank block may be inserted)

additional info:

1. Checked with FF and issue did not occured so i assume its blink issue