[BUG] Neither noregress nor keepmata store HDFE.solution

[mcaceresb]

Bug report

Please complete the following information:

• Stata version: 16.1
• OS: Arch Linux with kernel 6.5.7
• which reghdfe gives version 6.12.4 12sep2023

Behavior

• Expected behavior: mata HDFE.solution available after the noregress or keepmata options.
• Actual behavior:

. which reghdfe
/home/mauricio/ado/plus/r/reghdfe.ado
*! version 6.12.4 12sep2023

. sysuse auto, clear
(1978 Automobile Data)

. qui reghdfe price mpg, absorb(foreign) noregress

. mata HDFE.solution
solution not found in class FixedEffects
r(3000);

. qui reghdfe price mpg, absorb(foreign) keepmata

. mata HDFE.solution
solution not found in class FixedEffects
r(3000);

. reghdfe price mpg, absorb(foreign) noregress keepmata
(MWFE estimator converged in 1 iterations)

. mata HDFE.solution
solution not found in class FixedEffects
r(3000);

Steps to reproduce the problem

See above.