Slime (ver 2.29.1) REPL Occasional Incorrect Indentation upon Pressing TAB key

[JohnKiro]

Occasionally, REPL manual indentation becomes broken, as shown in the two screenshots below (before pressing TAB, after pressing TAB):

Before:

After:

Normally, pressing TAB in this case should not change the indentation.

Another example where I initially alter indentation manually by adding spaces, then press TAB:

Before:

After:

Not sure what specific Emacs configuration I'm having that could cause such behavior.

[stassats]

whatever these modes are is probably what's causing your repl issues.

[JohnKiro]

Maybe. I'll try to do some experiments by disabling mode by mode.
BTW, the issue is gone by itself (in the same session) :)

[edwlan]

I've had this issue before when there's an unpaired quote or parentheses previously in the REPL buffer. I can't reproduce it in newer versions of SLIME/emacs, though