Fix crash when using tile atlas merge with recreated alt tile
(cherry picked from commit 88d2ed433d
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@ -106,10 +106,11 @@ void AtlasMergingDialog::_generate_merged(Vector<Ref<TileSetAtlasSource>> p_atla
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// Create tiles and alternatives, then copy their properties.
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for (int alternative_index = 0; alternative_index < atlas_source->get_alternative_tiles_count(tile_mapping.key); alternative_index++) {
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int alternative_id = atlas_source->get_alternative_tile_id(tile_mapping.key, alternative_index);
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int changed_id = -1;
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if (alternative_id == 0) {
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merged->create_tile(tile_mapping.value, atlas_source->get_tile_size_in_atlas(tile_mapping.key));
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} else {
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merged->create_alternative_tile(tile_mapping.value, alternative_index);
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changed_id = merged->create_alternative_tile(tile_mapping.value, alternative_index);
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}
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// Copy the properties.
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@ -117,7 +118,7 @@ void AtlasMergingDialog::_generate_merged(Vector<Ref<TileSetAtlasSource>> p_atla
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List<PropertyInfo> properties;
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src_tile_data->get_property_list(&properties);
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TileData *dst_tile_data = merged->get_tile_data(tile_mapping.value, alternative_id);
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TileData *dst_tile_data = merged->get_tile_data(tile_mapping.value, changed_id == -1 ? alternative_id : changed_id);
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for (PropertyInfo property : properties) {
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if (!(property.usage & PROPERTY_USAGE_STORAGE)) {
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continue;
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