iOS 8.4 with iBooks 4.3 (2916) not work orientation lock option

After updating iOS (and iBooks) not works orientation lock option for *.epub books in iBooks (tested on iPad)

I tried add this option to

1) META-INF/com.apple.ibooks.display-options.xml file

<option name="orientation-lock">portrait-only</option>

2) tried to lock oientation in *.opf file

add prefixes

<package xmlns="http://www.idpf.org/2007/opf" version="3.0" xml:lang="en" unique-identifier="BookId" prefix='rendition: http://www.idpf.org/vocab/rendition/# ibooks: http://vocabulary.itunes.apple.com/rdf/ibooks/vocabulary-extensions-1.0/' >

tried to add properties into medadata tag:

<meta property="rendition:layout">pre-paginated</meta>

<meta property="rendition:orientation">portrait</meta>

<meta property="rendition:spread">portrait</meta>

and

<meta property='ibooks:ipad-orientation-lock'>portrait-only</meta>

but orientation still changes for each cases.