Gegl-0.4.gir varies between build

While working on reproducible builds for openSUSE, I found that our gegl package varied between builds like this:

+++ new//usr/share/gir-1.0/Gegl-0.4.gir 2023-06-26 00:00:00.000000000 +0000
@@ -3174,13 +3174,13 @@
                 writable="1"
                 construct="1"
                 transfer-ownership="none"
-                default-value="4">
+                default-value="1">
         <type name="gint" c:type="gint"/>
       </property>
       <property name="tile-cache-size"
                 writable="1"
                 transfer-ownership="none"
-                default-value="10457034752">
+                default-value="10481881088">
         <type name="guint64" c:type="guint64"/>
       </property>
       <property name="tile-height"

It seems to store the amount of free memory and CPU cores during build: https://gitlab.gnome.org/GNOME/gegl/-/blob/master/gegl/gegl-config.c#L326

Is the file even needed? Can that unreproducible data be dropped? Should it be set to a fixed value instead?