我已经在我的Debian 9上为nginx设置了正式的主线存储库
安装apt-get install nginx导致安装1.13版本，这很好。 但是当我尝试安装nginx-common和nginx-full它会尝试nginx-full安装1.10 ，从而导致错误。
Preconfiguring packages ... (Reading database ... 37853 files and directories currently installed.) Preparing to unpack .../nginx-common_1.10.3-1_all.deb ... Unpacking nginx-common (1.10.3-1) ... dpkg: error processing archive /var/cache/apt/archives/nginx-common_1.10.3-1_all.deb (--unpack): trying to overwrite '/etc/default/nginx', which is also in package nginx 1.13.2-1~stretch dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/nginx-common_1.10.3-1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1)
这是一个新的Debian 9安装只有官方存储库，但我也可以在一个迁移的Debian 8到9重现它。
我错过了什么？