Using Scriban v5.4.6

Template:

{{ "b" }}
Normal Text
    {{ "indented text" }}

Output:

b
Normal Text
        indented text

Expected:

b
Normal Text
    indented text

FWIW, I tried investigating it myself. {{ "b" }} causes the TemplateContext's _previousTextWasNewLine to be set to true. Then, Normal Text\n[THE 4 SPACES INCLUDED] is printed to the output(_previousTextWasNewLine is not set to false here). Finally, {{ "indented text" }} is printed to the output. Since _previousTextWasNewLine is true at the final step, the current indent is re-printed as if it were a new and blank line, causing the indent to duplicate