Fixes yexport cmake generator

Fixes yexport cmake generator
9043abced31c63ee49a4fd1eca657486c3b67680

build/export_generators/cmake/generator.toml

@@ -120,6 +120,7 @@ dir_includes="set"
 [attrs.target]
 # DEPRECATED - Skipped old hardcoded-cmake attributes
 set_target_property="skip"
+append_target_property="skip"
 
 # DEPRECATED - target multiple calls macroses
 generate_enum_serilization="skip"

build/export_generators/cmake/target_properties.jinja

@@ -1,12 +1,19 @@
-{%- for property in current_target.properties -%}
+{%- if (current_target.target_properties is defined) and (current_target.target_properties|length) -%}
+{#-    Deduplicate target property names -#}
+{%-    set property_names = current_target.target_properties|map(attribute='name')|unique -%}
+{%-    for property_name in property_names -%}
+{%-         set properties = current_target.target_properties|selectattr('name', 'eq', property_name) -%}
+{#-         Apply only first property by name -#}
+{%-         set property = properties|first %}
 set_property(TARGET {{ name }} PROPERTY {{ property.name }}
-{%-     for value in property.value %}
+{%-         for value in property.value %}
   {{ value }}
-{%-     endfor %}
+{%-         endfor %}
 )
-{%  endfor -%}
+{%      endfor -%}
+{%- endif -%}
 
-{%- if (current_target.protoc_extra_outs is defined) and (current_target.protoc_extra_outs|length) -%}
+{%- if (current_target.protoc_extra_outs is defined) and (current_target.protoc_extra_outs|length) %}
 set_property(TARGET {{ name }} PROPERTY PROTOC_EXTRA_OUTS
 {%-     for protoc_extra_out in current_target.protoc_extra_outs %}
   {{ protoc_extra_out }}