Parse error when one cell contains multiple multi-line quasiquotes

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Steps to reproduce

Cell 1:

:extension TemplateHaskell QuasiQuotes
import PyF

Cell 2:

[fmt|a|] <> [fmt|b|]

Cell 3:

[fmt|a|] <> [fmt|
b
|]

Cell 4:

[fmt|
a
|] <> [fmt|b|]

Cell 5:

[fmt|
a
|] <> [fmt|
b
|]

Expected result

All cells run without problem.

Actual result

Only cell 5 produces error:

Parse error (line 1, column 1): unterminated quasiquotation at end of input

Parse error (line 3, column 1): parse error on input ‘|]’