ZTF J181732.64+101954.5: ER UMa + Z Cam + IW And
From ZTF data. Supercycle about 56 d before 2020 May.
Then long standstill. ER UMa state e.g. 2019 July-Sep.
(normal outbursts + superoutburst).
In 2019 Mar.-June, two superoutbursts occurred
directly from a standstill (like NY Ser), but with
the same supercycle. Superhumps with a period of
0.08881(4) d (0.13 mag) were detected during
the 2019 June-July superoutburst.
IW And state (dip following superoutburst) was recorded
in 2018 Mar.-July.
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