"Fix" root cause of T51260 Forward compatibility crash fter adding new IDProp type.
We unfortunately cannot fix this for previous versions of Blender, but at least the issue (Blender crashing on unknown IDProp types) should now be addressed for future. Simply reset unknown IDProp types to integer one, and reset its value to zero.
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@ -2107,8 +2107,19 @@ static void IDP_DirectLinkProperty(IDProperty *prop, int switch_endian, FileData
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BLI_endian_switch_int32(&prop->data.val2);
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BLI_endian_switch_int64((int64_t *)&prop->data.val);
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}
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break;
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case IDP_INT:
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case IDP_FLOAT:
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case IDP_ID:
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break; /* Nothing special to do here. */
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default:
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/* Unknown IDP type, nuke it (we cannot handle unknown types everywhere in code,
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* IDP are way too polymorphic to do it safely. */
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printf("%s: found unknown IDProperty type %d, reset to Integer one !\n", __func__, prop->type);
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/* Note: we do not attempt to free unknown prop, we have no way to know how to do that! */
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prop->type = IDP_INT;
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prop->subtype = 0;
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IDP_Int(prop) = 0;
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}
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}
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