Check chan not closed before sending updates for memory loader (#1894)
* dont send on closed chan
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@ -176,6 +176,11 @@ func (m *memory) update() {
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value: vals.Get(w.path...),
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}
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select {
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case <-w.exit:
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continue
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default:
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}
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select {
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case w.updates <- uv:
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default:
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