axis tick custom format "???????" discards leading spaces
Expected and desired behavior: When formatting axis tick labels using custom format "????????", numbers should be formatted with a width of at least 8, with leading spaces if necessary. This is important e.g. when preparing multiple graphs that line up with each other.
This custom format works as expected in other contexts, just not in axis tick labels.
Observed behavior: See attached spreadsheet. The leading spaces are discarded. Graphs that should line up do not. Graphs that shouldn't line up do.
Platform:
This is not a new bug. It is observed in an old bog-standard distributed version 1.12.38 and also in a new version 1.12.47 compiled from freshly pulled git sources.
:; /usr/src/gnome/gnumeric/src/gnumeric --version
gnumeric version '1.12.47'
datadir := '/usr/src/gnome/install/share/gnumeric/1.12.47'
libdir := '/usr/src/gnome/gnumeric'
:; uname -srmo
Linux 4.19.42+ x86_64 GNU/Linux
:; lsb_release -a
LSB Version: core-9.20170808ubuntu1-noarch:cxx-3.0-amd64:cxx-3.0-noarch:cxx-3.1-amd64:cxx-3.1-noarch:cxx-3.2-amd64:cxx-3.2-noarch:cxx-4.0-amd64:cxx-4.0-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-3.1-amd64:desktop-3.1-noarch:desktop-3.2-amd64:desktop-3.2-noarch:desktop-4.0-amd64:desktop-4.0-noarch:desktop-4.1-amd64:desktop-4.1-noarch:graphics-2.0-amd64:graphics-2.0-noarch:graphics-3.0-amd64:graphics-3.0-noarch:graphics-3.1-amd64:graphics-3.1-noarch:graphics-3.2-amd64:graphics-3.2-noarch:graphics-4.0-amd64:graphics-4.0-noarch:graphics-4.1-amd64:graphics-4.1-noarch:multimedia-3.2-amd64:multimedia-3.2-noarch:multimedia-4.0-amd64:multimedia-4.0-noarch:multimedia-4.1-amd64:multimedia-4.1-noarch:printing-9.20170808ubuntu1-noarch:qt4-3.1-amd64:qt4-3.1-noarch:security-9.20170808ubuntu1-noarch
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic