in src/main/java/com/googlesource/gerrit/plugins/xdocs/client/PatchSetSelectBox.java [158:168]
private boolean showEditIcon() {
if (sideA() || !change.isOpen() || !Plugin.get().isSignedIn()) {
return false;
}
if (change.has_edit()) {
return patchSet == 0;
} else {
return patchSet == change.revision(change.current_revision())._number();
}
}