SLOTS 4,5 may be set to 0 and not restored.

[em00k]

next-http/src/bank.asm

Lines 3 to 4 in 0acf320

	prevPageA DEFB 0
	prevPageB DEFB 0

SLOTS 4,5 are used for the buffer and its possible in certain circumstances for http to error out (missing a parameter such as -f) and http will leave SLOTS 4, 5 set to 0

An easy solution to this is start with the default banks defined instead of 0,0

prevPageA	DEFB 4
prevPageB	DEFB 5