Fix wrong selection problem on restore setText call

[bugraoral]

TextView.onRestoreInstanceState calls settext method with its own saved values, which prompts a filter with dstart&dend= 0 in which case the filter returns """. This causes an out of bounds exception on selection change because we need to set the selection after prefix.

[mgod]

Generally, I'd prefer not to have all the whitespace changes included in a PR.

[bugraoral]

Sorry about the spaces, ide autoformated and i did not notice