I confirm that this still happens

  └─x-terminal-emul,30456 /usr/bin/x-terminal-emulator
      ├─bash,4624
      │   └─sudo,7217 apt dist-upgrade
      │       └─apt,7218 dist-upgrade
      │           └─dpkg,7845 --status-fd 62 --configure --pending
      │               └─linux-headers-4,9209 /var/lib/dpkg/info/linux-headers-4.15.0-44-generic.postinst configure 
      │                   └─run-parts,9210 --report --exit-on-error --arg=4.15.0-44-generic /etc/kernel/header_postinst.d
      │                       └─dkms_autoinstal,9211 /usr/lib/dkms/dkms_autoinstaller start 4.15.0-44-generic
      │                           └─dkms,9219 /usr/sbin/dkms autoinstall --kernelver 4.15.0-44-generic
      │                               └─dkms,10053 /usr/sbin/dkms autoinstall --kernelver 4.15.0-44-generic
      │                                   └─frontend,11100 -w /usr/share/debconf/frontend /usr/sbin/update-secureboot-policy --enroll-key
      │                                       ├─update-securebo,11114 /usr/sbin/update-secureboot-policy --enroll-key
      │                                       └─whiptail,11129 --backtitle Package configuration --title Configuring Secure Boot --output-fd 12 --nocancel --msgbox...




teo       4624  0.0  0.0  26592  9236 pts/1    Ss   10:55   0:00  \_ /bin/bash
root      7217  0.0  0.0  63580  4228 pts/1    S+   10:56   0:00  |   \_ sudo apt dist-upgrade
root      7218  0.2  0.5 136428 85692 pts/1    S+   10:56   0:01  |       \_ apt dist-upgrade
root      7845  0.0  0.0  26548 10796 pts/2    Ss+  10:56   0:00  |           \_ /usr/bin/dpkg --status-fd 62 --configure --pending
root      9209  0.0  0.0   4628   776 pts/2    S+   10:56   0:00  |               \_ /bin/sh /var/lib/dpkg/info/linux-headers-4.15.0-44-generic.postinst configure
root      9210  0.0  0.0   4520   732 pts/2    S+   10:56   0:00  |                   \_ run-parts --report --exit-on-error --arg=4.15.0-44-generic /etc/kernel/header_postinst.d
root      9211  0.0  0.0   4628  1732 pts/2    S+   10:56   0:00  |                       \_ /bin/sh /usr/lib/dkms/dkms_autoinstaller start 4.15.0-44-generic
root      9219  0.0  0.0  15896  6348 pts/2    S+   10:56   0:00  |                           \_ /bin/bash /usr/sbin/dkms autoinstall --kernelver 4.15.0-44-generic
root     10053  0.0  0.0  16012  5652 pts/2    S+   10:56   0:00  |                               \_ /bin/bash /usr/sbin/dkms autoinstall --kernelver 4.15.0-44-generic
root     11100  0.0  0.1 104136 22572 pts/2    S+   10:56   0:00  |                                   \_ /usr/bin/perl -w /usr/share/debconf/frontend /usr/sbin/update-secureboot-policy --enroll-key
root     11114  0.0  0.0   4628  1780 pts/2    S+   10:56   0:00  |                                       \_ /bin/sh /usr/sbin/update-secureboot-policy --enroll-key
root     11129  0.0  0.0  25412  4664 pts/2    S+   10:56   0:00  |                                       \_ whiptail --backtitle Package configuration --title Configuring Secure Boot --output-fd 12 --nocancel -

teo@ux:/var/log/apt$ tail -n 6 term.log
Setting up linux-image-4.15.0-44-generic (4.15.0-44.47) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-4.15.0-43-generic
I: /initrd.img.old is now a symlink to boot/initrd.img-4.15.0-43-generic
I: /vmlinuz is now a symlink to boot/vmlinuz-4.15.0-44-generic
I: /initrd.img is now a symlink to boot/initrd.img-4.15.0-44-generic
Setting up linux-headers-4.15.0-44-generic (4.15.0-44.47) ...