Prev pagination button removes additional url parameters

[dav1312]

success_only=1 removed

ltc_only=1 removed

fishtest/server/fishtest/views.py

Lines 53 to 54 in dac6960

	"idx": "Prev",
	"url": "?page={}".format(page_idx),

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The Next button works fine

fishtest/server/fishtest/views.py

Lines 77 to 78 in dac6960

	"idx": "Next",
	"url": "?page={}".format(page_idx + 2) + query_params,