In Hebrew we use to write the shorten month format with an apostrophe.
For example, Aug is translated by 'אוג (note the apostrophe at the end of the word).
However, the RevisionSlider popup shows a different kind of apostrophe. It uses אוג׳ instead of 'אוג (note that the apostrophe is different).
I don't understand why the RevisionSlider uses the wrong apostrophe, because the shorten month format is translated with the correct apostrophe on translatewiki.net. For example: MediaWiki:Aug/he
For short, the RevisionSlider should not use a different apostrophe for Hebrew. It should use the common ' instead of the unacceptable ׳ .