LONDON — Call it the candy bar war that peaked.

When the makers of the distinctive Swiss confection Toblerone reconfigured their triangular treat last year to slim down its hallmark summits and widen the valleys between them, a potential rival — Britain’s Poundland discount chain — saw a niche in the market.

What Poundland perhaps did not anticipate was the battle of the brands that kept its new offering off the shelves while the owners of Toblerone, the giant American conglomerate Mondelez International, challenged the British company’s right to make a candy bar that looked so similar. Only in October did a three-month bout of legal arm-wrestling draw to an end. And only this week did Poundland’s bars hit the shelves — though not quite in the way the British chain had intended, and not, in their current shape at least, for long.

So what was all the fuss about?

Like Toblerone, Poundland’s version has peaks and troughs. It, too, originally came swathed in a golden wrapper with red lettering. But while the classic Toblerone bars had become lighter in weight in the reconfiguring — though their price remained the same — Poundland’s bar would be chunkier and cheaper, at one pound, or about $1.35, each.

Not, of course, that this was some crude copycat. If, as some contend, Toblerone was modeled on the soaring pyramid of a mountain — the Matterhorn on the Italian-Swiss border, which is about 14,690 feet high — Poundland’s bar was said to have been inspired by two less vertiginous hills in the English county of Shropshire near the border with Wales — the Ercall, at 460 feet, and the Wrekin, at 1,335 feet.