Hi, after a long study I found the problem: it is my PR #546 (Seblod #546) done to keep radio value and its label together in the same line (something Seblod is not doing natively). This PR just added a span class around each radio option to allow styling of the option itself, so in a CSS file you can set value and label together with something like
.cck_option_radio {
white-space:nowrap;
display:inline-block;
}
This simple addition is not compatible with button group used in admin content form (like On/Off switch). So I changed the PR adding the span class only when it is a "normal" radio -with text I mean-, not a button group.
cheers
Giuse