imapx_is_duplicate_fetch_or_refresh: Fix incorrect bit-flag test
imapx_is_duplicate_fetch_or_refresh: Fix incorrect bit-flag test

tintou/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server