It appears that sometime when editing content with XPM that the published content ends up with version information in component links (eg tcm:12-345-v0). This will cause an exception to be thrown when DXA tries to resolve the link using the com.sdl.webapp.tridion.linking.AbstractTridionLinkResolver as this expects an integer in the 3rd segment of the tcm uri (see line 66 from version 1.7)
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It appears that sometime when editing content with XPM that the published content ends up with version information in component links (eg tcm:12-345-v0). This will cause an exception to be thrown when DXA tries to resolve the link using the com.sdl.webapp.tridion.linking.AbstractTridionLinkResolver as this expects an integer in the 3rd segment of the tcm uri (see line 66 from version 1.7)