:echo "Test"  1>foo.c 

:svn add foo.c 
A         foo.c

:svn commit -m "Added foo" foo.c 

:svn proplist foo.c 
######## No properties for foo.c #######

:dir foo.c 
15.09.2015  20:21                 9 foo.c

######### foo.c has been added to repository - and we wait 1 minute #######

:sleep 61 

:svn switch https://tetra.funkwerk-sc.com/test/project2/trunk/src/module2/test/foo.c foo.c 

:dir foo.c 
15.09.2015  20:21                 9 foo.c
######### foo.c has been switched #######

:sleep 61 

:svn propset svn:keywords "" foo.c 
property 'svn:keywords' set on 'foo.c'

:svn commit -m "Added empty property svn:keyword" foo.c 

:svn proplist foo.c 
Properties on 'foo.c':
  svn:keywords

:dir foo.c 
15.09.2015  20:21                 9 foo.c

######### foo.c now has property svn:keywords and we wait another minute #######

:sleep 61 

:svn switch https://tetra.funkwerk-sc.com/test/project2/trunk/src/module2/test/foo.c foo.c 

:dir foo.c 
######### foo.c has a new timestamp after switch - and we wait another minute#######

:sleep 61 

:svn propdel svn:keywords foo.c 
property 'svn:keywords' deleted from 'foo.c'.

:svn commit -m "Removed property svn:keywords" foo.c 

:dir foo.c 
15.09.2015  20:25                 9 foo.c
######## property svn:keywords removed - we wait 1 last minute########

:sleep 61 

:svn switch https://tetra.funkwerk-sc.com/test/project2/trunk/src/module2/test/foo.c foo.c 

:dir foo.c 
15.09.2015  20:25                 9 foo.c
######## No change of date after 1 Minute ########