Spellcheck correction deletes the space before the first corrected word

[rachelmcr]

When using iOS spellcheck, after correcting a misspelled word the space preceding that word is deleted.

Steps to reproduce:

• In Settings > General > Keyboard enable Check Spelling for your keyboard.
• In the WordPress app, start a new post and misspell a word. Move a space forward.

• Go back a space to see the suggested spelling and select it.

• Note that the word is now correctly spelled, but the space preceding the word was deleted.

In my testing, this only happens for the first misspelled word in the post. Any subsequent misspelled words can be corrected without any spacing issues. I also found that I could tap on the misspelled word and select the correct spelling without any trouble; the spacing issue only occurred if I backspaced to view and select the correction.

Reported on iPad mini, h/t Chrissie for the report. I tested and reproduce on iPhone 6, iOS 9.3, beta app v. 6.1.0.20160318.