Regex clears upon Input drag

[CatRabbit499]

If you accidently drag a regex row by its <Input> box and it happens to be released over another regex row's <Input> box, both <Input> boxes are erased and can't be recovered with any amount of Ctrl+Z

Google Chrome	70.0.3538.77 (Official Build) (64-bit) (cohort: Stable)
Revision	0f6ce0b0cd63a12cb4eccea3637b1bc9a29148d9-refs/branch-heads/3538@{#1039}
OS	Windows
JavaScript	V8 7.0.276.32
Flash	31.0.0.122

[ao5357]

@CatRabbit499 ,

Thank you for the detailed error report! I will keep you up to date on the repair here on this thread.

And thank you for your interest in development_favicon, bpcz