No data is not an error

src/palette/internal/paletteworkspacesetup.cpp

@@ -86,7 +86,7 @@ void PaletteWorkspaceSetup::setup()
     auto loadData = [this]() {
         RetVal<QByteArray> data = workspacesDataProvider()->rawData(DataKey::Palettes);
         PaletteTreePtr tree;
-        if (data.ret) {
+        if (data.ret && !data.val.isEmpty()) {
             LOGD() << "there is palette data in the workspace, we will use it";
             ByteArray ba = ByteArray::fromQByteArrayNoCopy(data.val);
             tree = readPalette(ba);

src/workspace/internal/workspace.cpp

@@ -71,11 +71,6 @@ RetVal<QByteArray> Workspace::rawData(const DataKey& key) const
         return RetVal<QByteArray>(make_ret(Err::NotLoaded));
     }
 
-    QByteArray data = m_file.data(key_to_string(key));
-    if (data.isEmpty()) {
-        return RetVal<QByteArray>(make_ret(Err::NoData));
-    }
-
     RetVal<QByteArray> rv;
     rv.ret = make_ret(Ret::Code::Ok);
     rv.val = m_file.data(key_to_string(key));

src/workspace/workspaceerrors.h

@@ -31,7 +31,6 @@ enum class Err {
     UnknownError    = int(Ret::Code::WorkspaceFirst),
 
     NotLoaded       = 1502,
-    NoData          = 1503,
 
     FailedPack      = 1510,
     FailedUnPack    = 1511,