OpenMRS failure due to missing liquibase-update-to-latest.xml

[schuyler]

After this failed integration test run, attempting to log into OpenMRS manually on the staging server yielded the following error both in the browser and in catalina.out, causing the tests to fail:

ERROR - UpdateFilterModel.updateChanges(76) |2019-09-26 22:50:22,011| Unable to get the database changes
java.lang.RuntimeException: Error occurred while trying to get the updates needed for the database. liquibase-update-to-latest.xml does not exist
        at org.openmrs.util.DatabaseUpdater.getUnrunDatabaseChanges(DatabaseUpdater.java:627)
        at org.openmrs.util.DatabaseUpdater.getUnrunDatabaseChanges(DatabaseUpdater.java:586)

Restarting tomcat7 manually fixed whatever the problem was.