fix#18450 - Central column with a default value cannot be created

[LHofman]

Description

Central column with a default value cannot be created

Fixes #18450

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.63%. Comparing base (5f43edb) to head (3687f42).
Report is 15 commits behind head on QA_5_2.

Additional details and impacted files

@@             Coverage Diff              @@
##             QA_5_2   #19059      +/-   ##
============================================
+ Coverage     48.33%   48.63%   +0.30%     
- Complexity    17026    17027       +1     
============================================
  Files           607      607              
  Lines         72361    72363       +2     
============================================
+ Hits          34975    35196     +221     
+ Misses        37386    37167     -219     

Flag	Coverage Δ
dbase-extension	48.71% <ø> (+0.03%)	⬆️
recode-extension	48.14% <ø> (-0.50%)	⬇️
unit-7.2-ubuntu-latest	48.13% <ø> (-1.13%)	⬇️
unit-7.3-ubuntu-latest	49.79% <ø> (+1.24%)	⬆️
unit-7.4-ubuntu-latest	48.56% <ø> (+0.06%)	⬆️
unit-8.0-ubuntu-latest	48.56% <ø> (-0.05%)	⬇️
unit-8.1-ubuntu-latest	48.59% <ø> (+0.05%)	⬆️
unit-8.2-ubuntu-latest	48.54% <ø> (+0.03%)	⬆️
unit-8.3-ubuntu-latest	49.30% <ø> (+0.73%)	⬆️

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[MauricioFauth]

This only partially fixes the issue. It doesn't fix the second part where a PHP error is raised.

[LHofman]

Must have missed that part. I'll take a look soon