[mcomix]: "upgrade" to v1.3.0.dev0
    
    although the version number has not changed,
    this version is built from different sources than the previous "version"
    the highest version number in the ChangeLog is 1.2.1
    the version number of this package was taken from the 'VERSION' in the sources
    however, the upstream did not change either version numbers
    and neither did the packager; so the pkgver is meaningless
    
    this software is a fork - the original software had versioned releases;
    but AFAICT, this fork has no versioned releases
    the version number itself, indicates that it is volatile pre-release software,
    with little assurance of the permanence of the VCS commit from which this is built
    
    all of this together, suggests that this should be a -git package,
    to give users fair warning that it is volatile and unlikely to be supported upstream