Use isEmpty instead of isNull in UpdateChannel #994
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Use isEmpty instead of isNull in ChannelUtil::UpdateChannel to handle both an empty string and no string in the same way. With an IPTV channel rescan the existing values of xmltvid and icon are now preserved when there are no new values found in the scan. Refs MythTV#973
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Use isEmpty instead of isNull in ChannelUtil::UpdateChannel to handle both an empty string and no string in the same way. With an IPTV channel rescan the existing values of xmltvid and icon are now preserved when there are no new values found in the scan.
Refs #973