regression with detect_missing_value between 1013 and 1029

[ssenesi]

I am time-averaging fields (snow albedoes) which are both :

• defined with a mask and
• showing missing values at time-varying location

I am also remapping these fields to grid complete' : a rectilinear grid with gaussian latitudes

In Xios parlance, it writes :

<file id="EXPID_test_4D" output_freq="6h" >

<field_group domain_ref="complete" expr="@this">

<field field_ref="albs" name="albs_avg" operation="average" detect_missing_value="true"/>

</field_group>

</file>

The result is fine with XIOS 1013 : locations which do not always have a defined values do show senesible values
However, with XIOS 1029, they show values which obviously are averaged n samples whare the mssing value (here 1.e+20) is considered as a valid value

[ssenesi]

Additional information : "instant" fields are OK

[ssenesi]

XIos team explained me that, from some release between 1013 and 1029, due to a basic change in missing_values handling, you know have to declare a default_value for the target field

[ssenesi]

However, it would make sense that filters which have one single input flux let their output flux inherit the default value set for this input flux