Bug#930667: Download is performed unsandboxed as root as file '/var/lib/apt/lists/partial/...' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

[積丹尼 Dan Jacobson <jidanni@jidanni.org>]

Package: apt
Version: 1.8.2
Severity: minor

# apt update
W: Download is performed unsandboxed as root as file '/var/lib/apt/lists/partial/opensource.nchc.org.tw_debian_dists_experimental_InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
# ls  /var/lib/apt/lists/partial/ -ld
drwx------ 2 _apt root 4096 06-18 10:47 /var/lib/apt/lists/partial/