VersionParser crashed on version constraint like "dev-load-varnish-only-when-used as ^2.0@dev"

[gemozlobin2]

After update composer to version 1.10.11 I'm getting error from update command at any project

[UnexpectedValueException]
Could not parse version constraint dev-load-varnish-only-when-used as ^2.0@dev: Invalid version string "^2.0@dev"

Launch composer with -vvv option show

app@host:~$ composer update --dry-run -vvv
... skip
Downloading http://repo.packagist.org/p/symfony/polyfill-php70%24688cb065da992de6111ec75cde05ada182f93b8e58dbef5bb21674c882aa334e.json
Writing /home/app/.composer/cache/repo/https---repo.packagist.org/provider-symfony$polyfill-php70.json into cache

[RuntimeException]
Could not load package ezsystems/ezplatform in http://repo.packagist.org: [UnexpectedValueException] Could not parse version constraint dev-load-varnish-only-when-used as ^2.0@dev: Invalid version str
ing "^2.0@dev"

https---repo.packagist.org/provider-symfony$polyfill-php70.json contains string "ezsystems/ezplatform-http-cache":"dev-load-varnish-only-when-used as ^2.0@dev" that break last semver commit 07ed0f4#diff-d31fb7758d82628c36d95136856a69ca

[flack]

Can confirm the issue (I had reported it as composer/composer/issues/9191)