Where does a double `/etc/ppp/chap-secrets` in a fresh `make package/install` come from?

Ahoj,

when I build OpenWRT, on package/install I get the following message (which did not make the build fail, but confuses me):

Collected errors:
* resolve_conffiles: Existing conffile /home/felics/download/Router-OS/OpenWRT/OpenWRT/openwrt-22.03/build_dir/target-arm_cortex-a7+neon-vfpv4_musl_eabi/root-sunxi/etc/ppp/chap-secrets is different from the conffile in the new package. The new conffile will be placed at /home/felics/download/Router-OS/OpenWRT/OpenWRT/openwrt-22.03/build_dir/target-arm_cortex-a7+neon-vfpv4_musl_eabi/root-sunxi/etc/ppp/chap-secrets-opkg.

I have not added any manual chap-secrets file. So where does this double file (might) come from? Any ideas?

My configuration:

  • grep -i ppp .config | grep -v luci-i18n:
    CONFIG_DEFAULT_ppp=y
    CONFIG_DEFAULT_ppp-mod-pppoe=y
    CONFIG_PACKAGE_kmod-ppp=y
    CONFIG_PACKAGE_kmod-ppp-synctty=y
    CONFIG_PACKAGE_kmod-pppoa=y
    CONFIG_PACKAGE_kmod-pppoe=y
    CONFIG_PACKAGE_kmod-pppol2tp=y
    CONFIG_PACKAGE_kmod-pppox=y
    CONFIG_PACKAGE_luci-app-rp-pppoe-server=m
    CONFIG_PACKAGE_luci-proto-ppp=y
    CONFIG_PACKAGE_luci-proto-pppossh=y
    CONFIG_PACKAGE_rp-pppoe-common=m
    CONFIG_PACKAGE_rp-pppoe-relay=m
    CONFIG_PACKAGE_rp-pppoe-server=m
    CONFIG_PACKAGE_ppp=y
    CONFIG_PACKAGE_ppp-mod-passwordfd=y
    CONFIG_PACKAGE_ppp-mod-pppoa=y
    CONFIG_PACKAGE_ppp-mod-pppoe=y
    CONFIG_PACKAGE_ppp-mod-pppol2tp=y
    CONFIG_PACKAGE_ppp-mod-pptp=y
    CONFIG_PACKAGE_ppp-mod-radius=y
    # CONFIG_PACKAGE_ppp-multilink is not set
    CONFIG_PACKAGE_pppdump=y
    CONFIG_PACKAGE_pppoe-discovery=y
    CONFIG_PACKAGE_pppossh=y
    CONFIG_PACKAGE_pppstats=m
    CONFIG_LCD4LINUX_CUSTOM_NEEDS_ppp=y
    CONFIG_LCD4LINUX_CUSTOM_PLUGIN_ppp=y
    
  • Full .config → here.