libs/cbi: properly handle uvl errors without childs
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@ -166,7 +166,7 @@ local function _uvl_validate_section(node, name)
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local function tag_section(e)
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local s = { }
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for _, c in ipairs(e.childs) do
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for _, c in ipairs(e.childs or { e }) do
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if c.childs and not c:is(luci.uvl.errors.ERR_DEPENDENCY) then
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table.insert( s, c.childs[1]:string() )
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else
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