Based on the provided input, there is no information available to evaluate the portrayal of LGBTQ+ characters or themes in 'Kováci'. Therefore, the film is categorized as N/A due to the absence of relevant details for analysis.

The film "Kováci" does not feature any identifiable transsexual characters or themes. Its narrative focuses on a blacksmith's family and social realism in post-war Czechoslovakia, with no elements related to transgender identity or experiences.

The movie does not contain any action or adventure elements.

The film "Kováci" (1946) is an original production, not an adaptation of existing source material with pre-established characters or a depiction of historical figures. Therefore, there are no characters whose canonical or historical gender could have been altered.

There is no widely known source material or historical context for the 1946 Czech film "Kováci" that establishes any character's race as different from their portrayal in the film. Therefore, no race swap occurred.