Bugfix/14 start date bug

[suhailshergill]

@dmitri-carpov :+1: conditional to addressing open checkboxes/tasks:

• https://github.com/dmitri-carpov/eigenflow/commit/467077b37925fe2bb0f480a3bfb3671dc3248e3c#commitcomment-15905682
• https://github.com/ypg-data/eigenflow/pull/20#commitcomment-15892269 (see https://github.com/ypg-data/eigenflow/pull/20#commitcomment-15901068 for resolution)

[dmitri-carpov]

Commits before squashing to track PR discussions: https://github.com/dmitri-carpov/eigenflow/commit/3d2122a92b2e3eb613e38a0257327541db9c4320 https://github.com/dmitri-carpov/eigenflow/commit/c286a1b40305d4c546e463378239d5c86732f459 https://github.com/dmitri-carpov/eigenflow/commit/67da44ef6b720e10dcde524879733ed142a316bb https://github.com/dmitri-carpov/eigenflow/commit/6f4f7280708344cb97ce21e6be9ae3081f284f12