Last modified: 2014-03-13 22:45:23 UTC
It doesn't actually reflect changes in the module meaning it can lead to serious caching issues such as in bug 62004
*** Bug 62004 has been marked as a duplicate of this bug. ***
The last modified time will currently only change when MobileFrontend.php or MobileFrontend.i18n.php change. This means it shouldn't cause issues in a weekly/daily deployment schedule but will be a problem when deployments are more rapid.
Change 115952 had a related patch set uploaded by Jdlrobson: Update last modified time when a template or file changes in MFResourceLoaderModule https://gerrit.wikimedia.org/r/115952
jdlrobson: Originally the timestamp only needed to change when a template file or a message changed but now it inherits from ResourceLoaderFileModule it also needs to pay attention to file changes [11:01am] jdlrobson: some how we were paying attention to nothing directly related to the module (relying on i18n message changes)
Change 115952 merged by jenkins-bot: Update last modified time when a template or file changes in MFResourceLoaderModule https://gerrit.wikimedia.org/r/115952