Jira Mixed Nested Lists Conversion Issue

[arctus-io]

Jira supports two different syntax styles for mixed nested lists but jira2markdown only identifies/converts with one version:

First version (works in jira2markdown), each nested bullet begins with same bullet character(s) (#'s or *'s) as its parent bullet:

# a
# numbered
#* with
#* nested
#* bullet
# list

* a
* bulleted
*# with
*# nested
*# numbered
* list

Second version (does not work in jira2markdown), each nested bullet uses only the bullet character (#'s or *'s) of it's type:

# a
# numbered
** with
** nested
** bullet
# list

* a
* bulleted
## with
## nested
## numbered
* list

I can provide additional info and/or submit a PR later on.